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5x+3y=39 x+y=3 we will eliminate the y terms first multiply bottom equation by -3 -3x-3y=-9 add this to the first equation 5x-3x+3y-3y=39-9 2x+0=30 divide both sdies by 2 x=15
subsitute into second equation x+y=3 15+y=3 subtract 15 from both sdies y=-12
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