13.1r-0.05+6.5r=-11.69+18.4r

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Solution for 13.1r-0.05+6.5r=-11.69+18.4r equation: 



13.1r-0.05+6.5r=-11.69+18.4r

We move all terms to the left:

13.1r-0.05+6.5r-(-11.69+18.4r)=0

We add all the numbers together, and all the variables

13.1r+6.5r-(18.4r-11.69)-0.05=0

We add all the numbers together, and all the variables

19.6r-(18.4r-11.69)-0.05=0

We get rid of parentheses

19.6r-18.4r+11.69-0.05=0

We add all the numbers together, and all the variables

1.2r+11.64=0

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

1.2r=-11.64

r=-11.64/1.2

r=-9+0.84/1.2

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