4u+23=7u-7

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Solution for 4u+23=7u-7 equation: 



4u+23=7u-7

We move all terms to the left:

4u+23-(7u-7)=0

We get rid of parentheses

4u-7u+7+23=0

We add all the numbers together, and all the variables

-3u+30=0

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

-3u=-30

u=-30/-3

u=+10

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