42=2(2x+1)

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Solution for 42=2(2x+1) equation: 



42=2(2x+1)

We move all terms to the left:

42-(2(2x+1))=0



We calculate terms in parentheses: -(2(2x+1)), so:

2(2x+1)

We multiply parentheses

4x+2

Back to the equation:

-(4x+2)



We get rid of parentheses

-4x-2+42=0

We add all the numbers together, and all the variables

-4x+40=0

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

-4x=-40

x=-40/-4

x=+10

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