4u=u-7

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Solution for 4u=u-7 equation: 



4u=u-7

We move all terms to the left:

4u-(u-7)=0

We get rid of parentheses

4u-u+7=0

We add all the numbers together, and all the variables

3u+7=0

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

3u=-7

u=-7/3

u=-2+1/3

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