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

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Solution for 3(x+1)=3(-x-1) equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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



We calculate terms in parentheses: -(3(-1x-1)), so:

3(-1x-1)

We multiply parentheses

-3x-3

Back to the equation:

-(-3x-3)



We get rid of parentheses

3x+3x+3+3=0

We add all the numbers together, and all the variables

6x+6=0

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

6x=-6

x=-6/6

x=-1

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