Solve for y
y=-6
Solve for x (complex solution)
x\in \mathrm{C}
y=-6
Solve for x
x\in \mathrm{R}
y=-6
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0+15y=-90
Anything times zero gives zero.
15y=-90
Anything plus zero gives itself.
y=\frac{-90}{15}
Divide both sides by 15.
y=-6
Divide -90 by 15 to get -6.
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