12=-2(10+x)

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Solution for 12=-2(10+x) equation: 



12=-2(10+x)

We move all terms to the left:

12-(-2(10+x))=0

We add all the numbers together, and all the variables

-(-2(x+10))+12=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+20+12=0

We add all the numbers together, and all the variables

2x+32=0

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

2x=-32

x=-32/2

x=-16

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