31=-2(1-x)+5(x+1)

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Solution for 31=-2(1-x)+5(x+1) equation: 



31=-2(1-x)+5(x+1)

We move all terms to the left:

31-(-2(1-x)+5(x+1))=0

We add all the numbers together, and all the variables

-(-2(-1x+1)+5(x+1))+31=0



We calculate terms in parentheses: -(-2(-1x+1)+5(x+1)), so:

-2(-1x+1)+5(x+1)

We multiply parentheses

2x+5x-2+5

We add all the numbers together, and all the variables

7x+3

Back to the equation:

-(7x+3)



We get rid of parentheses

-7x-3+31=0

We add all the numbers together, and all the variables

-7x+28=0

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

-7x=-28

x=-28/-7

x=+4

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