13=-2(2x+4)+x

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Solution for 13=-2(2x+4)+x equation: 



13=-2(2x+4)+x

We move all terms to the left:

13-(-2(2x+4)+x)=0



We calculate terms in parentheses: -(-2(2x+4)+x), so:

-2(2x+4)+x

We add all the numbers together, and all the variables

x-2(2x+4)

We multiply parentheses

x-4x-8

We add all the numbers together, and all the variables

-3x-8

Back to the equation:

-(-3x-8)



We get rid of parentheses

3x+8+13=0

We add all the numbers together, and all the variables

3x+21=0

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

3x=-21

x=-21/3

x=-7

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