Question

X + y = 8
If x = -1 what is y?

Answer 1

Answer: y = 9

Explanation:

First of all, you right out your equation

x + y = 8

Secondly, you sub in the values you have

-1 + y = 8

Then you can swap your answer and y

-1 + 8 = y

Work out the answer

-1 + 8 = 9

Answer is y = 9

Answer 2

Answer: 9

Step-by-step explanation:-1 plus 9 equals 8