27=u/2+21

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Solution for 27=u/2+21 equation: 



27=u/2+21

We move all terms to the left:

27-(u/2+21)=0

We get rid of parentheses

-u/2-21+27=0

We multiply all the terms by the denominator


-u-21*2+27*2=0

We add all the numbers together, and all the variables

-1u+12=0

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

-u=-12

u=-12/-1

u=+12

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