2(u-9)-9=-7(-3u+3)-9u

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Solution for 2(u-9)-9=-7(-3u+3)-9u equation: 



2(u-9)-9=-7(-3u+3)-9u

We move all terms to the left:

2(u-9)-9-(-7(-3u+3)-9u)=0

We multiply parentheses

2u-(-7(-3u+3)-9u)-18-9=0



We calculate terms in parentheses: -(-7(-3u+3)-9u), so:

-7(-3u+3)-9u

We add all the numbers together, and all the variables

-9u-7(-3u+3)

We multiply parentheses

-9u+21u-21

We add all the numbers together, and all the variables

12u-21

Back to the equation:

-(12u-21)



We add all the numbers together, and all the variables

2u-(12u-21)-27=0

We get rid of parentheses

2u-12u+21-27=0

We add all the numbers together, and all the variables

-10u-6=0

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

-10u=6

u=6/-10

u=-3/5

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