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Mathematics 15 Online
OpenStudy (anonymous):

-x-4y=-37 -2x-5y=-53

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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