3(9+u)=6

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Solution for 3(9+u)=6 equation: 



3(9+u)=6

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(u+9)-6=0

We multiply parentheses

3u+27-6=0

We add all the numbers together, and all the variables

3u+21=0

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

3u=-21

u=-21/3

u=-7

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