-1.05-0.21r=0.14r+2.1r=-9

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Solution for -1.05-0.21r=0.14r+2.1r=-9 equation: 



-1.05-0.21r=0.14r+2.1r=-9

We move all terms to the left:

-1.05-0.21r-(0.14r+2.1r)=0

We add all the numbers together, and all the variables

-0.21r-(+2.24r)-1.05=0

We get rid of parentheses

-0.21r-2.24r-1.05=0

We add all the numbers together, and all the variables

-2.45r-1.05=0

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

-2.45r=1.05

r=1.05/-2.45

r=-1/2.3333333333333

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