-10(-9+-9u)=

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Solution for -10(-9+-9u)= equation: 


Simplifying
-10(-9 + -9u) = 0
(-9 * -10 + -9u * -10) = 0
(90 + 90u) = 0

Solving
90 + 90u = 0

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-90' to each side of the equation.
90 + -90 + 90u = 0 + -90

Combine like terms: 90 + -90 = 0
0 + 90u = 0 + -90
90u = 0 + -90

Combine like terms: 0 + -90 = -90
90u = -90

Divide each side by '90'.
u = -1

Simplifying
u = -1

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