31=-2(x-4)

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Solution for 31=-2(x-4) equation: 



31=-2(x-4)

We move all terms to the left:

31-(-2(x-4))=0



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

-2(x-4)

We multiply parentheses

-2x+8

Back to the equation:

-(-2x+8)



We get rid of parentheses

2x-8+31=0

We add all the numbers together, and all the variables

2x+23=0

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

2x=-23

x=-23/2

x=-11+1/2

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