20-10x=-(4+7x)

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Solution for 20-10x=-(4+7x) equation: 



20-10x=-(4+7x)

We move all terms to the left:

20-10x-(-(4+7x))=0

We add all the numbers together, and all the variables

-10x-(-(7x+4))+20=0



We calculate terms in parentheses: -(-(7x+4)), so:

-(7x+4)

We get rid of parentheses

-7x-4

Back to the equation:

-(-7x-4)



We get rid of parentheses

-10x+7x+4+20=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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