3u+39=-6(u+7)

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Solution for 3u+39=-6(u+7) equation: 



3u+39=-6(u+7)

We move all terms to the left:

3u+39-(-6(u+7))=0



We calculate terms in parentheses: -(-6(u+7)), so:

-6(u+7)

We multiply parentheses

-6u-42

Back to the equation:

-(-6u-42)



We get rid of parentheses

3u+6u+42+39=0

We add all the numbers together, and all the variables

9u+81=0

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

9u=-81

u=-81/9

u=-9

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