-2r+4r=-8+r

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



-2r+4r=-8+r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

2r-(r-8)=0

We get rid of parentheses

2r-r+8=0

We add all the numbers together, and all the variables

r+8=0

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

r=-8

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