3x+42=2(3x+9)

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Solution for 3x+42=2(3x+9) equation: 



3x+42=2(3x+9)

We move all terms to the left:

3x+42-(2(3x+9))=0



We calculate terms in parentheses: -(2(3x+9)), so:

2(3x+9)

We multiply parentheses

6x+18

Back to the equation:

-(6x+18)



We get rid of parentheses

3x-6x-18+42=0

We add all the numbers together, and all the variables

-3x+24=0

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

-3x=-24

x=-24/-3

x=+8

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