Question 1034434
5x + y = 9
10x - 7y = -18
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10x + 2y = 18  1st eqn times 2
10x - 7y = -18
------------------- Subtract
9y = 36
y = 4
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5x + y = 9
5x + 4 = 9
5x = 5
x = 1