8=-2(7+x)

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Solution for 8=-2(7+x) equation: 



8=-2(7+x)

We move all terms to the left:

8-(-2(7+x))=0

We add all the numbers together, and all the variables

-(-2(x+7))+8=0



We calculate terms in parentheses: -(-2(x+7)), so:

-2(x+7)

We multiply parentheses

-2x-14

Back to the equation:

-(-2x-14)



We get rid of parentheses

2x+14+8=0

We add all the numbers together, and all the variables

2x+22=0

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

2x=-22

x=-22/2

x=-11

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