8+13-13r=-2+10r

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Solution for 8+13-13r=-2+10r equation: 



8+13-13r=-2+10r

We move all terms to the left:

8+13-13r-(-2+10r)=0

We add all the numbers together, and all the variables

-13r-(10r-2)+8+13=0

We add all the numbers together, and all the variables

-13r-(10r-2)+21=0

We get rid of parentheses

-13r-10r+2+21=0

We add all the numbers together, and all the variables

-23r+23=0

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

-23r=-23

r=-23/-23

r=1

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