Answer:
(2, 3)
Step-by-step explanation:
3x + 4y = 18
-1 (-2x + 4y) = (8)-1
2x - 4y = -8
Elimination: Side work:
3x + 4y = 18 3x + 2x = 5x
2x - 4y = -8 4y - 4y = nothing
5x = 10 18 - 8 = 10
x = 2 Divide by 5 on both sides
Substitute back in to one of the equations
x = 2
3x + 4y = 18
3(2) + 4y = 18
6 + 4y = 18
4y = 18 - 6 Subtract 6 on both sides
4y = 12 Divide by 4 on both sides
y = 3
