7=u/3

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Solution for 7=u/3 equation: 



7=u/3

We move all terms to the left:

7-(u/3)=0

We add all the numbers together, and all the variables

-(+u/3)+7=0

We get rid of parentheses

-u/3+7=0

We multiply all the terms by the denominator


-u+7*3=0

We add all the numbers together, and all the variables

-1u+21=0

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

-u=-21

u=-21/-1

u=+21

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