Question

Solve the system of equations by substitution
3y - 6x = 24
8 + 2x = y

Answer 1

Explanation:

y = 8 + 2x

3(8+2x) - 6x = 24

24 + 6x - 6x = 24

24 = 24

This equation is an identity, all real numbers are solutions

Answer 2

So we substitute y with 8+2x and get 3(8+2x)-6x=24 24+6x-6x=24 so x=0 and 3y=24 so y=8