9=u/2+4

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Solution for 9=u/2+4 equation: 



9=u/2+4

We move all terms to the left:

9-(u/2+4)=0

We get rid of parentheses

-u/2-4+9=0

We multiply all the terms by the denominator


-u-4*2+9*2=0

We add all the numbers together, and all the variables

-1u+10=0

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

-u=-10

u=-10/-1

u=+10

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