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Mathematics 11 Online
OpenStudy (anonymous):

find 2x+y y=-2x+7 6x+3y=21

OpenStudy (mertsj):

Look at that second equation. What would you get if you divided both sides of it by 3?

OpenStudy (raden):

or look at the 1st equation, if you add by 2x to both sides what u get then ...

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