5u-7u=-8

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Solution for 5u-7u=-8 equation: 


Simplifying
5u + -7u = -8

Combine like terms: 5u + -7u = -2u
-2u = -8

Solving
-2u = -8

Solving for variable 'u'.

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

Divide each side by '-2'.
u = 4

Simplifying
u = 4

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