3u=56-4u

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Solution for 3u=56-4u equation: 


Simplifying
3u = 56 + -4u

Solving
3u = 56 + -4u

Solving for variable 'u'.

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

Add '4u' to each side of the equation.
3u + 4u = 56 + -4u + 4u

Combine like terms: 3u + 4u = 7u
7u = 56 + -4u + 4u

Combine like terms: -4u + 4u = 0
7u = 56 + 0
7u = 56

Divide each side by '7'.
u = 8

Simplifying
u = 8

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