2x+20=-2(10+x)

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Solution for 2x+20=-2(10+x) equation: 



2x+20=-2(10+x)

We move all terms to the left:

2x+20-(-2(10+x))=0

We add all the numbers together, and all the variables

2x-(-2(x+10))+20=0



We calculate terms in parentheses: -(-2(x+10)), so:

-2(x+10)

We multiply parentheses

-2x-20

Back to the equation:

-(-2x-20)



We get rid of parentheses

2x+2x+20+20=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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