2b+8=-b-4

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Solution for 2b+8=-b-4 equation: 



2b+8=-b-4

We move all terms to the left:

2b+8-(-b-4)=0

We add all the numbers together, and all the variables

2b-(-1b-4)+8=0

We get rid of parentheses

2b+1b+4+8=0

We add all the numbers together, and all the variables

3b+12=0

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

3b=-12

b=-12/3

b=-4

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