2x-(8x-13)+21=7(-X+6)

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Solution for 2x-(8x-13)+21=7(-X+6) equation: 



2x-(8x-13)+21=7(-x+6)

We move all terms to the left:

2x-(8x-13)+21-(7(-x+6))=0

We add all the numbers together, and all the variables

2x-(8x-13)-(7(-1x+6))+21=0

We get rid of parentheses

2x-8x-(7(-1x+6))+13+21=0



We calculate terms in parentheses: -(7(-1x+6)), so:

7(-1x+6)

We multiply parentheses

-7x+42

Back to the equation:

-(-7x+42)



We add all the numbers together, and all the variables

-6x-(-7x+42)+34=0

We get rid of parentheses

-6x+7x-42+34=0

We add all the numbers together, and all the variables

x-8=0

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

x=8

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