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7x - 3y = 37

2x - y = 12

You can eliminate y by multiplying both sides of equation 2 by minus 3 and then add:

7x - 3y = 37

-6x + 3y = -36

x = 1

substitute x =1 into either equation and solve y

2(1) -y =12

-y = 10

y = -10

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