Answer:
x = 3; y = 6
Step-by-step explanation:
Using elimination method:
2x + y = 12
+. (the y will cancel out)
3x - y = 3
5x = 15
therefore, x = 15
5
x = 3
substitute x in one of the equations
2(3) + y = 12
6 + y = 12
y = 12 - 6
y = 6
therefore y = 6
