Question

What is the value of x in the equation 8x-2y=48 when y =4

Answer 1

8x-2y=48

First substitute y for 4,

whi8ch gives you

8x-8=48

add 8 to both sides

8x=56

divide by 8 on both sides

x=7

Answer 2

Plug in y.

8x-2y=48

8x-2(4)=48

8x-8=48

Cancel out 8. 8x=56

Isolate x. x=56/8

x=7

Hope it helped!