5r-7=2-8r

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Solution for 5r-7=2-8r equation: 



5r-7=2-8r

We move all terms to the left:

5r-7-(2-8r)=0

We add all the numbers together, and all the variables

5r-(-8r+2)-7=0

We get rid of parentheses

5r+8r-2-7=0

We add all the numbers together, and all the variables

13r-9=0

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

13r=9

r=9/13

r=9/13

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