Question

In the equation x + y = 8, find the value of x if y = 3

3
5
7
11

Answer 1

substitute y in the equation

x+3=8

then we solve for x

transpose 3 to the right 8-3=5so therefore x=5

Answer 2

11

Explanation:

x+y=8 y=3

x+3=8

-3 -3

x=11