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OpenStudy (anonymous):
solve for y in the following system of equations x-y=-1 3x+5y=21
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OpenStudy (anonymous):
x = y-1 3y -3 +5y =21 8y=24 y=3 x = 2
OpenStudy (anonymous):
could you please explain the first two steps briefly?
OpenStudy (anonymous):
x - y = -1 x = y -1 add y both sides then 3(x) +5y = 21 3(y-1)+5y =21
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