Solve for w
w=2
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-8w+7=-9
Swap sides so that all variable terms are on the left hand side.
-8w=-9-7
Subtract 7 from both sides.
-8w=-16
Subtract 7 from -9 to get -16.
w=\frac{-16}{-8}
Divide both sides by -8.
w=2
Divide -16 by -8 to get 2.
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