u+7=4-3u

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Solution for u+7=4-3u equation: 



u+7=4-3u

We move all terms to the left:

u+7-(4-3u)=0

We add all the numbers together, and all the variables

u-(-3u+4)+7=0

We get rid of parentheses

u+3u-4+7=0

We add all the numbers together, and all the variables

4u+3=0

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

4u=-3

u=-3/4

u=-3/4

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