9u-45=3(u-9)

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Solution for 9u-45=3(u-9) equation: 



9u-45=3(u-9)

We move all terms to the left:

9u-45-(3(u-9))=0



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

3(u-9)

We multiply parentheses

3u-27

Back to the equation:

-(3u-27)



We get rid of parentheses

9u-3u+27-45=0

We add all the numbers together, and all the variables

6u-18=0

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

6u=18

u=18/6

u=3

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