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19+u+11+16-3=83
We simplify the equation to the form, which is simple to understand
19+u+11+16-3=83
We move all terms containing u to the left and all other terms to the right.
+1u=+83-19-11-16+3
We simplify left and right side of the equation.
+1u=+40
We divide both sides of the equation by 1 to get u.
u=40
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