7=u/4-9

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Solution for 7=u/4-9 equation: 



7=u/4-9

We move all terms to the left:

7-(u/4-9)=0

We get rid of parentheses

-u/4+9+7=0

We multiply all the terms by the denominator


-u+9*4+7*4=0

We add all the numbers together, and all the variables

-1u+64=0

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

-u=-64

u=-64/-1

u=+64

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