12=u/5+7

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Solution for 12=u/5+7 equation: 



12=u/5+7

We move all terms to the left:

12-(u/5+7)=0

We get rid of parentheses

-u/5-7+12=0

We multiply all the terms by the denominator


-u-7*5+12*5=0

We add all the numbers together, and all the variables

-1u+25=0

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

-u=-25

u=-25/-1

u=+25

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