27=4u-u

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Solution for 27=4u-u equation:


Simplifying
27 = 4u + -1u

Combine like terms: 4u + -1u = 3u
27 = 3u

Solving
27 = 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.
27 + -3u = 3u + -3u

Combine like terms: 3u + -3u = 0
27 + -3u = 0

Add '-27' to each side of the equation.
27 + -27 + -3u = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -3u = 0 + -27
-3u = 0 + -27

Combine like terms: 0 + -27 = -27
-3u = -27

Divide each side by '-3'.
u = 9

Simplifying
u = 9

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