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OpenStudy (anonymous):
what is the y-value in the solution? 3x - 5y = -16 and 2x + 5y = 31
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OpenStudy (amistre64):
it might be simpler to find the x value and work it from that angle since the ys cancel right away
OpenStudy (amistre64):
3x - 5y = -16 2x + 5y = 31 ------------- 5x = 15
OpenStudy (anonymous):
I know, x = 3
OpenStudy (amistre64):
then if x = 3 2x + 5y = 31 2(3) + 5y = 31 6 + 5y = 31 5y = 31-6 = 25
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