Question

Solve the equation for y. Then find the value of Y for each value of X.

Answer 1

Step-by-step explanation:

y + 7x = 9

y = 9 - 7x , (x = - 1)

y = 9 - 7 (-1)

y= 9 - (-7)

y = - 16

y = 9 - 7x , (x = 0)

y = 9 - 7(0)

y = 9 - 0

y = 0

y= 9 - 7x , (x = 2)

y = 9 - 7 (2)

y = 9 - 14

y = - 5

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Answer 2

Answer:

y=9-7x

If x= -1, y=16

If x= 0, y=9

If x=2, y= -5

Step-by-step explanation:

Because you are solving the equation for y, you want to have y by itself on one side. The only way to do that in this problem is by subtracting the 7x on both sides.

y+7x=9

-7x -7x ---> y=9-7x

The next part of the question says to find the value of Y for each value of X. Using the given X values, we plug them into the equation we just got in order to find Y.

y=9-7(-1) ----> y=16

y=9-7(0) ----> y=9

y=9-7(2) ----> y=-5