-17+21=-2(x+1)

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Solution for -17+21=-2(x+1) equation: 



-17+21=-2(x+1)

We move all terms to the left:

-17+21-(-2(x+1))=0

We add all the numbers together, and all the variables

-(-2(x+1))+4=0



We calculate terms in parentheses: -(-2(x+1)), so:

-2(x+1)

We multiply parentheses

-2x-2

Back to the equation:

-(-2x-2)



We get rid of parentheses

2x+2+4=0

We add all the numbers together, and all the variables

2x+6=0

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

2x=-6

x=-6/2

x=-3

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