-7u-2u=3u

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Solution for -7u-2u=3u equation: 


Simplifying
-7u + -2u = 3u

Combine like terms: -7u + -2u = -9u
-9u = 3u

Solving
-9u = 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-9u + -3u = 3u + -3u

Combine like terms: -9u + -3u = -12u
-12u = 3u + -3u

Combine like terms: 3u + -3u = 0
-12u = 0

Divide each side by '-12'.
u = 0

Simplifying
u = 0

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