30=u/2-9

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Solution for 30=u/2-9 equation: 



30=u/2-9

We move all terms to the left:

30-(u/2-9)=0

We get rid of parentheses

-u/2+9+30=0

We multiply all the terms by the denominator


-u+9*2+30*2=0

We add all the numbers together, and all the variables

-1u+78=0

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

-u=-78

u=-78/-1

u=+78

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