-8u-13u+u=-20

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Solution for -8u-13u+u=-20 equation: 


Simplifying
-8u + -13u + u = -20

Combine like terms: -8u + -13u = -21u
-21u + u = -20

Combine like terms: -21u + u = -20u
-20u = -20

Solving
-20u = -20

Solving for variable 'u'.

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

Divide each side by '-20'.
u = 1

Simplifying
u = 1

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