12=u/7+3

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Solution for 12=u/7+3 equation: 



12=u/7+3

We move all terms to the left:

12-(u/7+3)=0

We get rid of parentheses

-u/7-3+12=0

We multiply all the terms by the denominator


-u-3*7+12*7=0

We add all the numbers together, and all the variables

-1u+63=0

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

-u=-63

u=-63/-1

u=+63

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