Solve for y
y=-6
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21+8y=-27
Swap sides so that all variable terms are on the left hand side.
8y=-27-21
Subtract 21 from both sides.
8y=-48
Subtract 21 from -27 to get -48.
y=\frac{-48}{8}
Divide both sides by 8.
y=-6
Divide -48 by 8 to get -6.
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