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Mathematics 31 Online
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

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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