4u=u+72

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Solution for 4u=u+72 equation: 



4u=u+72

We move all terms to the left:

4u-(u+72)=0

We get rid of parentheses

4u-u-72=0

We add all the numbers together, and all the variables

3u-72=0

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

3u=72

u=72/3

u=24

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