3u=u+56

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Solution for 3u=u+56 equation: 



3u=u+56

We move all terms to the left:

3u-(u+56)=0

We get rid of parentheses

3u-u-56=0

We add all the numbers together, and all the variables

2u-56=0

We move all terms containing u to the left, all other terms to the right

2u=56

u=56/2

u=28

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