Solve for u
u=0
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27-4u=u+27+3u
Add 3 and 24 to get 27.
27-4u=4u+27
Combine u and 3u to get 4u.
27-4u-4u=27
Subtract 4u from both sides.
27-8u=27
Combine -4u and -4u to get -8u.
-8u=27-27
Subtract 27 from both sides.
-8u=0
Subtract 27 from 27 to get 0.
u=0
Product of two numbers is equal to 0 if at least one of them is 0. Since -8 is not equal to 0, u must be equal to 0.
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