12=4+u/2

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Solution for 12=4+u/2 equation: 



12=4+u/2

We move all terms to the left:

12-(4+u/2)=0

We add all the numbers together, and all the variables

-(u/2+4)+12=0

We get rid of parentheses

-u/2-4+12=0

We multiply all the terms by the denominator


-u-4*2+12*2=0

We add all the numbers together, and all the variables

-1u+16=0

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

-u=-16

u=-16/-1

u=+16

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