-1=7+u/2

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Solution for -1=7+u/2 equation: 



-1=7+u/2

We move all terms to the left:

-1-(7+u/2)=0

We add all the numbers together, and all the variables

-(u/2+7)-1=0

We get rid of parentheses

-u/2-7-1=0

We multiply all the terms by the denominator


-u-7*2-1*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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