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-15u-16=84u-9
We simplify the equation to the form, which is simple to understand
-15u-16=84u-9
We move all terms containing u to the left and all other terms to the right.
-15u-84u=-9+16
We simplify left and right side of the equation.
-99u=+7
We divide both sides of the equation by -99 to get u.
u=-0.0707070707071
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