Question 883171
x - 2y = 12 
4x + 2y = 8
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5x = 20 {added the two equations}
x = 4 {divided each side by 5}


x - 2y = 12 {top equations}
4 - 2y = 12 {substituted 4, in for x, into top equation}
-2y = 8 {subtracted 4 from each side}
y = -4 {divided each side by -2}


(4,-4) is the solution to the system
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