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11-01-2016
Mathematics

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solve each system of linear equations by subtitution 3x+y=11 and -2x+y=11

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11-01-2016

3x+ y =11
2x+ y=11

rewrite equation in terms of y
3x+ y=11
y= -3x +11

substituting
2x +y=11
2x +(-3x+11)=11
-x= 0
x=0

3x+y=11
3(0) +y=11
y=11

your answer = (0,11)

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