3x+8=-1x+(-4)

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Solution for 3x+8=-1x+(-4) equation: 



3x+8=-1x+(-4)

We move all terms to the left:

3x+8-(-1x+(-4))=0



We calculate terms in parentheses: -(-1x+(-4)), so:

-1x+(-4)

We add all the numbers together, and all the variables

-1x-4

Back to the equation:

-(-1x-4)



We get rid of parentheses

3x+1x+4+8=0

We add all the numbers together, and all the variables

4x+12=0

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

4x=-12

x=-12/4

x=-3

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