6r-20=-25+r

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Solution for 6r-20=-25+r equation: 



6r-20=-25+r

We move all terms to the left:

6r-20-(-25+r)=0

We add all the numbers together, and all the variables

6r-(r-25)-20=0

We get rid of parentheses

6r-r+25-20=0

We add all the numbers together, and all the variables

5r+5=0

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

5r=-5

r=-5/5

r=-1

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