42=2x+3(5+x)-2x

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Solution for 42=2x+3(5+x)-2x equation: 



42=2x+3(5+x)-2x

We move all terms to the left:

42-(2x+3(5+x)-2x)=0

We add all the numbers together, and all the variables

-(2x+3(x+5)-2x)+42=0



We calculate terms in parentheses: -(2x+3(x+5)-2x), so:

2x+3(x+5)-2x

We add all the numbers together, and all the variables

3(x+5)

We multiply parentheses

3x+15

Back to the equation:

-(3x+15)



We get rid of parentheses

-3x-15+42=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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