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OpenStudy (anonymous):
For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation? -x - 2y = -4 3x + y = 12
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OpenStudy (eyust707):
well lets isolate x in the first equation...
OpenStudy (eyust707):
|dw:1342905787889:dw|
OpenStudy (eyust707):
to bring the -2y to the other side we should add 2y to both sides
OpenStudy (eyust707):
|dw:1342905839186:dw|
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