-13+8r=r+2+4r

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Solution for -13+8r=r+2+4r equation: 



-13+8r=r+2+4r

We move all terms to the left:

-13+8r-(r+2+4r)=0

We add all the numbers together, and all the variables

8r-(5r+2)-13=0

We get rid of parentheses

8r-5r-2-13=0

We add all the numbers together, and all the variables

3r-15=0

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

3r=15

r=15/3

r=5

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