Question 187419
Assuming you are expected to solve a system linear equations using the "elimination method":
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2x + 2y = 8
4x - 6y = 36 
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multiply both sides of the top equation and add it to the second:
6x + 6y = 24
4x - 6y = 36
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10x     = 60
Dividing both sides by 10:
x = 6 
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Now, we plug the value above into either equation to find y.  Let's pick the top one:
2x + 2y = 8
2(6) + 2y = 8
12 + 2y = 8
2y = -4
y = -2
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therefore:
(x,y) = (6, -2)