How to solve 4x+3y=16 2x-3y=8
Add them
4x + 3y = 16
+(2x - 3y = 8)
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6x = 24
x = 4
Substitute into one of the equations
2(4) - 3y = 8
8 - 3y = 8
-3y = 8 - 8
-3y = 0
y = 0 / -3
y = 0
Substitute both values into the other eqation
4(4) + 3(0) = 16
16 + 0 = 16