4u+3(u-7)=7

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



4u+3(u-7)=7

We move all terms to the left:

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

We multiply parentheses

4u+3u-21-7=0

We add all the numbers together, and all the variables

7u-28=0

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

7u=28

u=28/7

u=4

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