-1-1=4u-u

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Solution for -1-1=4u-u equation: 



-1-1=4u-u

We move all terms to the left:

-1-1-(4u-u)=0

We add all the numbers together, and all the variables

-(+3u)-1-1=0

We add all the numbers together, and all the variables

-(+3u)-2=0

We get rid of parentheses

-3u-2=0

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

-3u=2

u=2/-3

u=-2/3

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