(5-r)-2r=13=2r

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Solution for (5-r)-2r=13=2r equation: 



(5-r)-2r=13=2r

We move all terms to the left:

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

We add all the numbers together, and all the variables

(-1r+5)-2r-13=0

We add all the numbers together, and all the variables

-2r+(-1r+5)-13=0

We get rid of parentheses

-2r-1r+5-13=0

We add all the numbers together, and all the variables

-3r-8=0

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

-3r=8

r=8/-3

r=-2+2/3

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