20=(x+13)+6x

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Solution for 20=(x+13)+6x equation: 



20=(x+13)+6x

We move all terms to the left:

20-((x+13)+6x)=0



We calculate terms in parentheses: -((x+13)+6x), so:

(x+13)+6x

We add all the numbers together, and all the variables

6x+(x+13)

We get rid of parentheses

6x+x+13

We add all the numbers together, and all the variables

7x+13

Back to the equation:

-(7x+13)



We get rid of parentheses

-7x-13+20=0

We add all the numbers together, and all the variables

-7x+7=0

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

-7x=-7

x=-7/-7

x=1

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