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

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



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

We move all terms to the left:

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

We multiply parentheses

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

We get rid of parentheses

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



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

-(x+1)

We get rid of parentheses

-x-1

We add all the numbers together, and all the variables

-1x-1

Back to the equation:

-(-1x-1)



We add all the numbers together, and all the variables

x-(-1x-1)+3=0

We get rid of parentheses

x+1x+1+3=0

We add all the numbers together, and all the variables

2x+4=0

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

2x=-4

x=-4/2

x=-2

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