Problem: how to solve by using elimination method
-6x-6y=-12
-6x+7y=14
1) -6x - 6y = -12
2) -6x + 7y = 14
Subtract equation 1 from equation 2, eliminating the x.
-6x + 7y = 14
-( -6x - 6y = -12)
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13y = 26
13y = 26
13y/13 = 26/13
y = 2
Use equation 1 to solve for x.
-6x - 6y = -12
-6x - 6(2) = -12
-6x - 12 = -12
-6x - 12 + 12 = -12 + 12
-6x = 0
-6x/-6 = 0/-6
x = 0
Now, use equation 2 to check.
-6x + 7y = 14
-6(0) + 7(2) = 14
0 + 14 = 14
14 = 14
Answer: x = 0, y = 2