Solve for k
k=8
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8-4k=-24
Swap sides so that all variable terms are on the left hand side.
-4k=-24-8
Subtract 8 from both sides.
-4k=-32
Subtract 8 from -24 to get -32.
k=\frac{-32}{-4}
Divide both sides by -4.
k=8
Divide -32 by -4 to get 8.
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