Question 475956
x + y =  5
x - y =  -9
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2x = -4 {added the two equations together}
x = -2 {divided both sides by 2}


x + y = 5 {top equation
-2 + y = 5 {substituted -2, in for x, into top equation}
y = 7 {added 2 to both sides}


x = -2 and y = 7
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