-u=3u-20

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Solution for -u=3u-20 equation:


Simplifying
-1u = 3u + -20

Reorder the terms:
-1u = -20 + 3u

Solving
-1u = -20 + 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.
-1u + -3u = -20 + 3u + -3u

Combine like terms: -1u + -3u = -4u
-4u = -20 + 3u + -3u

Combine like terms: 3u + -3u = 0
-4u = -20 + 0
-4u = -20

Divide each side by '-4'.
u = 5

Simplifying
u = 5

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