Solve for u
u=2
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10-4u-u=0
Subtract u from both sides.
10-5u=0
Combine -4u and -u to get -5u.
-5u=-10
Subtract 10 from both sides. Anything subtracted from zero gives its negation.
u=\frac{-10}{-5}
Divide both sides by -5.
u=2
Divide -10 by -5 to get 2.
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Limits
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