3=u/5-7

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Solution for 3=u/5-7 equation: 



3=u/5-7

We move all terms to the left:

3-(u/5-7)=0

We get rid of parentheses

-u/5+7+3=0

We multiply all the terms by the denominator


-u+7*5+3*5=0

We add all the numbers together, and all the variables

-1u+50=0

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

-u=-50

u=-50/-1

u=+50

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