Solve for u
u=0
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\frac{1}{2}u+\frac{1}{2}\left(-3\right)=2u-\frac{3}{2}
Use the distributive property to multiply \frac{1}{2} by u-3.
\frac{1}{2}u+\frac{-3}{2}=2u-\frac{3}{2}
Multiply \frac{1}{2} and -3 to get \frac{-3}{2}.
\frac{1}{2}u-\frac{3}{2}=2u-\frac{3}{2}
Fraction \frac{-3}{2} can be rewritten as -\frac{3}{2} by extracting the negative sign.
\frac{1}{2}u-\frac{3}{2}-2u=-\frac{3}{2}
Subtract 2u from both sides.
-\frac{3}{2}u-\frac{3}{2}=-\frac{3}{2}
Combine \frac{1}{2}u and -2u to get -\frac{3}{2}u.
-\frac{3}{2}u=-\frac{3}{2}+\frac{3}{2}
Add \frac{3}{2} to both sides.
-\frac{3}{2}u=0
Add -\frac{3}{2} and \frac{3}{2} to get 0.
u=0
Product of two numbers is equal to 0 if at least one of them is 0. Since -\frac{3}{2} is not equal to 0, u must be equal to 0.
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