Solve for u
u=19
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\frac{18}{2}=u-10
Divide both sides by 2.
9=u-10
Divide 18 by 2 to get 9.
u-10=9
Swap sides so that all variable terms are on the left hand side.
u=9+10
Add 10 to both sides.
u=19
Add 9 and 10 to get 19.
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