6u-9=3(u-4)

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Solution for 6u-9=3(u-4) equation: 



6u-9=3(u-4)

We move all terms to the left:

6u-9-(3(u-4))=0



We calculate terms in parentheses: -(3(u-4)), so:

3(u-4)

We multiply parentheses

3u-12

Back to the equation:

-(3u-12)



We get rid of parentheses

6u-3u+12-9=0

We add all the numbers together, and all the variables

3u+3=0

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

3u=-3

u=-3/3

u=-1

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