7u-8u=13

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Solution for 7u-8u=13 equation: 


Simplifying
7u + -8u = 13

Combine like terms: 7u + -8u = -1u
-1u = 13

Solving
-1u = 13

Solving for variable 'u'.

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

Divide each side by '-1'.
u = -13

Simplifying
u = -13

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