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

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



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

We move all terms to the left:

3x+42-(-3(x+4))=0



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

-3(x+4)

We multiply parentheses

-3x-12

Back to the equation:

-(-3x-12)



We get rid of parentheses

3x+3x+12+42=0

We add all the numbers together, and all the variables

6x+54=0

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

6x=-54

x=-54/6

x=-9

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