Answer:
Step-by-step explanation:
x - 2y = 14
x + 3y = 9
subtract the first equation from the second to eliminate the x terms:
x + 3y = 9
-x + 2y = -14
-----------------
5y = -5
y = -1
x - 2(-1) = 14
x = 12
:::::
y = 2x
5x - y = 9
Substitute 2x for y in the second equation?:
5x - 2x = 9
3x = 9
x = 3
y = 6
