Solve for u
u=-5
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\frac{-168}{7}=4u-4
Divide both sides by 7.
-24=4u-4
Divide -168 by 7 to get -24.
4u-4=-24
Swap sides so that all variable terms are on the left hand side.
4u=-24+4
Add 4 to both sides.
4u=-20
Add -24 and 4 to get -20.
u=\frac{-20}{4}
Divide both sides by 4.
u=-5
Divide -20 by 4 to get -5.
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