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Mathematics 9 Online
OpenStudy (anonymous):

What is the value of the y variable in the solution to the following system of equations? 5x + 4y = 1 4x + 3y = -1 -7 7 9 -9

OpenStudy (psymon):

It'd be 9. Personally solved it by elimination *draws*

OpenStudy (anonymous):

9 I agree with Psymon. elimination rules in this case

OpenStudy (anonymous):

multiply the second equation by -5

OpenStudy (psymon):

|dw:1374947852697:dw| But yeah, you could multiply either one by negative, I just chose the top one.

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