9u+(-7u)=-12

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Solution for 9u+(-7u)=-12 equation: 


Simplifying
9u + (-7u) = -12

Combine like terms: 9u + (-7u) = 2u
2u = -12

Solving
2u = -12

Solving for variable 'u'.

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

Divide each side by '2'.
u = -6

Simplifying
u = -6

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