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OpenStudy (anonymous):
-x-4y=-37 -2x-5y=-53
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OpenStudy (anonymous):
multiply first equ. with 2 and substract 2nd equ.
OpenStudy (anonymous):
we get -3y=-21
OpenStudy (anonymous):
y=7 subtituting this in any of the equ. we get x value
OpenStudy (anonymous):
x=9
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