Posted by ** Anonymous,** on Friday, August 15, 2008 at 4:02pm.

the first equation of the system is mutiplied by 2,by what number would you mutiply the second equation to eliminate the x variable by adding. first:6x - 5y =21 4x+7y= 15 when i did the promblem i got 2 answers -3 or -2 im not sure which one

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