You can put this solution on YOUR website! 4x + 8y = 20
-4x + 2y = -30
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10y = -10 {added the two equations together}
y = -1 {divided each side by 10}
4x + 8y = 20 {top original equation}
4x + 8(-1) = 20 {substituted -1, for y, into top original equation}
4x - 8 = 20 {multiplied}
4x = 28 {added 8 to each side}
x = 7 {divided each side by 4}
