-3u+6u=-20-1

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Solution for -3u+6u=-20-1 equation: 


Simplifying
-3u + 6u = -20 + -1

Combine like terms: -3u + 6u = 3u
3u = -20 + -1

Combine like terms: -20 + -1 = -21
3u = -21

Solving
3u = -21

Solving for variable 'u'.

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

Divide each side by '3'.
u = -7

Simplifying
u = -7

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