2r+4=-8-2r

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



2r+4=-8-2r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2r+2r+8+4=0

We add all the numbers together, and all the variables

4r+12=0

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

4r=-12

r=-12/4

r=-3

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