x=2y-8
4x+3y=23
use substitution ...
1st into the 2nd:
4(2y-8) + 3y = 23
8y - 32 + 3y = 23
11y = 55
y = 5
back into the 1st
x = 10-8 = 2
x=2 , y = 5
4x+3y=23
1st into the 2nd:
4(2y-8) + 3y = 23
8y - 32 + 3y = 23
11y = 55
y = 5
back into the 1st
x = 10-8 = 2
x=2 , y = 5