Mathematics High School

-2(7-y)+4=-4 What is Y?

Answers

Answer 1

Answer:

Y=3

Step-by-step explanation:

You first distribute the -2

-14+2y+4=-4

Then you add the 4 and -14

2y-10=-4

Then you move the Y to one side by adding 10 to both sides

2y=6

Divide both sides by 2 to solve for Y

y=6/2

Simplify

y=3

Answer 2
Answer:
Y=3

Process:
-2(7-y)+4=-4
Distribute -2 into the parentheses
-14+2y+4=-4
Combine like terms
2y=-4-4+14
2y=-8+14
2y=6
Divide both sides by 2 to cancel it out on the left side
2y/2=6/2
y=3

I hope this helps!

Related Questions

Find the equation of the line shown. (y=mx+c)

Answers

Answer:

Step-by-step explanation:

Let's solve for c.

y=mx+c

Step 1: Flip the equation.

mx+c=y

Step 2: Add -mx to both sides.

mx+c+−mx=y+−mx

c=−mx+y

Ryan invested $20,000 into a low interest savings account with a rate of 0.02%. At the
end of 15 months, how much money did he make?

Answers

Answer:

Step-by-step explanation:

$2.66

Determine if x = 1 is the solution to this linear equation. 3x - 6(5x + 5) = 9x + 6 Is x = 1 the solution? No. When 1 is substituted for the variable, the result is a true statement. No. When 1 is substituted for the variable, the result is a false statement. Yes. When 1 is substituted for the variable, the result is a true statement. Yes. When 1 is substituted for the variable, the result is a false statement.

Answers

Answer: No. When 1 is substituted for the variable, the result is a false statement

Step-by-step explanation:

3x - 6(5x + 5) = 9x + 6

3x - 30x - 30 = 9x + 6

-27x -30 = 9x +6

-27x - 9x = 30 +6

-36x = 36

x = -1.

Substitute with x = -1 :

-3 - 6(-5 + 5) = -9 +6

-3 -30 + 30 = -3

-3 = -3

Therefore, the correct option is:

No. When 1 is substituted for the variable, the result is a false statement

Answer:

(B.)No. When 1 is substituted for the variable, the result is a false statement

Step-by-step explanation:

Did it on Edge.

Expand (x - 4)(x - 7)

Answers

Answer:

X^2-11x+28

Step-by-step explanation:

the expanded form is x^2+3x-28

Use the given endpoint Rand midpoint M of RSto find the coordinates of the other endpoint.
R(5,2), M (6,4)

Answers

Answer:

Step-by-step explanation:

(x+5)/2 = 6

x + 5 = 12

x = 7

(y + 2)/2= 4

y + 2 = 8

y = 6

(7, 6)

given f(x)=3/4x and f(x) = 75 solve for x

Answers

Answer:

x=100

Step-by-step explanation:

75=3/4x

4/3 × 75 = x

4 × 75 = 300

300/3= 100

100(3/4) = 75

x = 100

help is needed , anything works?

Answers

20w = S

Hope this helps

help please thank you.

Answers

Answer:

n=3.478

Step-by-step explanation:

n+0=n

n=3.478

Answer:

n = 3.478

Step-by-step explanation:

what is 1/6 2/6 3/6 4/6 and 5/6 as decimals?

Answers

Answer:

[tex]\frac{1}{6}[/tex] = .167

[tex]\frac{2}{6}[/tex] = .333

[tex]\frac{3}{6}[/tex] = .5

[tex]\frac{4}{6}[/tex] = .667

[tex]\frac{5}{6}[/tex] =.833

Step-by-step explanation:

Hope this helps !

hey so i have an easy question (so the mods don't get mad for me giving away points)
What's 15x21?
also
what's a cool thing you like to do that's a part of your country's culture?

Answers

315 and celebrate 4th of july

Answer:315

Step-by-step explanation:

find the distance between each pair of points: (-2, -1) and (3, 11)​

Answers

Use the distance formula ! Hope this helped :)

Draw two opposite rays MN and MP

Answers

Answer:

What is the problem? WHat is MN and MP then only I can draw them.

Here's a strange fact I recently found out:

"Scientists have long known that Africa is the cradle of human civilization​. There, our ancestors shed most of their body hair around 2 million years ago, and their dark skin protected them from skin cancer and other harmful effects of UV radiation. When humans began leaving Africa 20,000 to 50,000 years ago, a skin-whitening mutation appeared randomly in a sole individual, according to a 2005 Penn State study.  That mutation proved advantageous as humans moved into Europe. Why? Because it allowed the migrants increased access to vitamin D, which is crucial to absorbing calcium and keeping bones strong. "

which is the first step in simplifying the expression 2(x + 3) + 5?

A. 2x + 2(3) + 5
B. 2x + 3 + 5
C. 2 + x + 3 + 5
D. 2(5) + x + 3​

Answers

I believe the answer would be B

convert 36,400sec in day​

Answers

Step-by-step explanation:

36400 sec = 0.421 day

I think this should be the answer

What is the solution to -(4n + 19) = 6(n - 9)

Answers

The answer should be 7/5 ..

Answer:

3.5

Step-by-step explanation:

simplify it first.

-4n-19=6n-54

54-19=6n+4n

35=10n

3.5=n

If y= -3, then 4+y/4y

Answers

Answer:

B

Step-by-step explanation:

if y = -3 then 4+(-3)/4(-3) would be 4-3 = -1 over -12 so -1/-12 or 1/12 -->B

is √300 rational or irrational

Answers

Hey there! I'm happy to help!

If you put √300 into your calculator, you will get 17.32050808......

This cannot be written as a fraction of two integers, which is what makes a rational number. Therefore, this is an irrational number.

Have a wonderful day! :D

Factor 24x-28 completely

Answers

Answer:

4(6x-7)

Step-by-step explanation:

What is the solution to the equation?

4(2x+1)=5x+9+3x?

A=0
B=1
C=all real numbers
D=no solution

Answers

Answer:D

Step-by-step explanation:

Answer:

the answer is no solution

A person standing on a moving Walkway travels 90 feet in 30 seconds.What equation represents this relationship?How many feet will the person travel in 10 seconds.

Answers

They will travel 30 feet in 10 seconds

Answer:

they will travel 6 feet in 60 seconds.(y=6x;60 feet).

Step-by-step explanation:

A P E X

Write simplified expressions for the area and perimeter of the rectangle.

Answers

is it a multiple choice answer?

2x+3=5 solve for x. Please help! It's due tomorrow!

Answers

Answer:

x = 1

Step-by-step explanation:

Plot the graph y=3x from x=-1 from x=2

Answers

Answer:

(-1,-3) and (2,6)

Step-by-step explanation:

Plug x (x value) into equation (outputs y value)

(x value, y value) which gives coordinates

5,250 as scientific notation

Answers

Answer:5.25 x 10 power of 3

Step-by-step explanation:

[tex]\text{Hey there!}[/tex]

[tex]\text{5.250 as a scientific notation}[/tex]

[tex]\bf{The\ answer\ is:}[/tex][tex]\boxed{\bf{5.25 \times10^3}}}}[/tex]

[tex]\text{Because, we had to move your decimal approximately 3 placecs to the left}[/tex]

[tex]\rightarrow\tex{= 5250. }[/tex]

[tex]\boxed{\text{That's how we know the answer is: \bf{\boxed{5.25 \times10^3}}}}\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

If a = b then a - c = b - c. This is the ________ property of equality.

Answers

Answer:

this property states that if quantity b, then b equals a. Another property that can be explained by this is the transitive property of equality. It tells us that if a quantity a equals quantity b, and b equals the quantity, c, then a and c are equal as well.

Hey there!

ANSWER: transitive

FILL IN THE BLANK:

If a = b then a - c = b - c. This is the transitive property of equality.

Hope this helps!

[tex]-TestedHyperr[/tex]

Write 2.01 times 10 to the 5th power in standard form.

Answers

Answer:

201000

Step-by-step explanation:

Step-by-step explanation:

2.01 × 10^5. That's the answer

helpp meeeee!!!!!!!!!!!!

Answers

So g(x) just means the function of the x term as the original value of this is 2x+1 then this is your starting point, when it says -2g(x) all you have to do is do the same to the other side of the equation so just do (2x+1) x -2 this would be -4x-2 as the signs would change due to the negative 2 as a positive and a negative make a negative so the answer is the second one -2g(x) = -4x-2
Hope this helps x

8. A vending machine sells chips for $0.50 and
candy bars for $1.00. If Jim spent $5.50 on snacks
in the machine over the course of a week, how
many candy bars did he buy?
K. cannot be determined from the riven

Answers

Answer:

up to 5 candy bars

Step-by-step explanation:

2. What is 0.03249 in scientific notation?
3.249 X 10^-1
3.249 X 10^-2
O 3.25 x 10^-2
O 3.25 x 10^-3
3. What number does 715 x 10^3 in

Answers

Answer:

3.249 X 10^-2

Step-by-step explanation:

2.

[tex] \huge 0.03249 = 3.249 \times {10}^{ - 2} \\ [/tex]

3.

[tex]\huge 715 \times {10}^{3} = 715000 \\ [/tex]

Solve the equation -5(x-2)=-(x+6)

Answers

Answer:

[tex] \huge{ \bold{ \huge{ \boxed{ \sf{x = 4}}}}} [/tex]

Step-by-step explanation:

[tex] \sf{ - 5(x - 2) = - (x + 6)}[/tex]

Distribute -5 through the parentheses in left hand side

Similarly, distribute ( - ) sign through the parentheses in right hand side

[tex] \longrightarrow{ \sf{ - 5x + 10 = - x - 6}}[/tex]

Move x to left hand hand side and change it's sign

Similarly, move 10 to right hand side and change it's sign

[tex] \longrightarrow{ \sf{ - 5x + x = - 6 - 10}}[/tex]

Collect like terms

[tex] \longrightarrow{ \sf{ - 4x = - 6 - 10}}[/tex]

The negative integers are always added but posses the negative ( - ) sign

[tex] \longrightarrow{ \sf{ - 4x = - 16}}[/tex]

Divide both sides by -4

[tex] \longrightarrow{ \sf{ \frac{ - 4x}{ - 4} = \frac{ - 16}{ - 4}}} [/tex]

Calculate

[tex] \longrightarrow{ \sf{x = 4}}[/tex]

Hope I helped!

Best regards! :D

Steps to solve:

-5(x - 2) = -(x + 6)

~Simplify both sides

-5x + 10 = -x - 6

~Subtract 10 to both sides

-5x = -x - 16

~Add x to both sides

-4x = -16

~Divide -4 to both sides

x = 4

Best Of Luck!

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