-20r-13.49=-19.4r+16.87+13.2r

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Solution for -20r-13.49=-19.4r+16.87+13.2r equation: 



-20r-13.49=-19.4r+16.87+13.2r

We move all terms to the left:

-20r-13.49-(-19.4r+16.87+13.2r)=0

We add all the numbers together, and all the variables

-20r-(-6.2r+16.87)-13.49=0

We get rid of parentheses

-20r+6.2r-16.87-13.49=0

We add all the numbers together, and all the variables

-13.8r-30.36=0

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

-13.8r=30.36

r=30.36/-13.8

r=-2+2.76/13.8

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