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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 A. -7 B. 7 C. 9 D. -9
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OpenStudy (mertsj):
Multiply the top equation by 4 Multiply the second equation by -5 Add the two equations and solve for y
OpenStudy (lgbasallote):
...or simply do the easiest thing in the world...trial and error!!!! \m/ =))))) lol i'm just kidding...you gotta learn that ^
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