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OpenStudy (anonymous):
addition/elimination - Find solution x+y=2 -3x+4y=15
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OpenStudy (anonymous):
method or answer?
OpenStudy (anonymous):
here is the answer http://www.wolframalpha.com/input/?i=x%2By%3D2+%2C-3x%2B4y%3D15
OpenStudy (anonymous):
you can rewrite first equation as \(y=2-x\) substitute in the second equation and get \[-3x+4(2-x)=15\] and then solve that one for \(x\) if you like
OpenStudy (anonymous):
|dw:1041462780210:dw|
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