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

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



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

We move all terms to the left:

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

We multiply parentheses

3u-(-3(-7u+9)-3u)-27-3=0



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

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-3u+21u-27

We add all the numbers together, and all the variables

18u-27

Back to the equation:

-(18u-27)



We add all the numbers together, and all the variables

3u-(18u-27)-30=0

We get rid of parentheses

3u-18u+27-30=0

We add all the numbers together, and all the variables

-15u-3=0

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

-15u=3

u=3/-15

u=-1/5

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