−2x+15y=−24
2x+9y=24
Add the two equations together.
-2x +2x = 0
15y + 9y = 24y
-24+24 = 0
The two equations when added become:
24y = 0
Solve for y:
divide both sides by 24:
y = 0/24 = 0
The value of Y is 0
Now replace Y in one of the equations and solve for x:
2x+9(0) = 24
2x + 0 = 24
2x = 24
Divide both sides by 2:
x = 24/2
x = 12.
The value of x is 12
The solution is (12,0)