Question

what is the value of x in 5x - 7 = y, if y =8

Answer 1

Answer:  x = 3

To get that answer, we replace y with 8 and then isolate x.

5x-7 = y

5x-7 = 8

5x = 8+7

5x = 15

x = 15/5

x = 3

Answer 2

Answer:

The value of x is 3.

Step-by-step explanation:

5x-7=y

5x-7=8

5x=8+7

5x=15

x=15/5

x=3