Question

2x - y = 8
x + y = 4
How to find the solution using substitution

Answer 1

X=4, Y=4

Explanation:

First Solve for y

y= 4-x

Sub that in for y on the other equation.

2x-4-x=8

x=4

Answer 2

x =4 & y=0

Explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation