3u+42=-3(u+4)

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Solution for 3u+42=-3(u+4) equation: 



3u+42=-3(u+4)

We move all terms to the left:

3u+42-(-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

3u+3u+12+42=0

We add all the numbers together, and all the variables

6u+54=0

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

6u=-54

u=-54/6

u=-9

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