3x+42=-2(x-6)

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Solution for 3x+42=-2(x-6) equation: 



3x+42=-2(x-6)

We move all terms to the left:

3x+42-(-2(x-6))=0



We calculate terms in parentheses: -(-2(x-6)), so:

-2(x-6)

We multiply parentheses

-2x+12

Back to the equation:

-(-2x+12)



We get rid of parentheses

3x+2x-12+42=0

We add all the numbers together, and all the variables

5x+30=0

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

5x=-30

x=-30/5

x=-6

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