9.1r+3.78=8.2r

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Solution for 9.1r+3.78=8.2r equation: 



9.1r+3.78=8.2r

We move all terms to the left:

9.1r+3.78-(8.2r)=0

We add all the numbers together, and all the variables

9.1r-(+8.2r)+3.78=0

We get rid of parentheses

9.1r-8.2r+3.78=0

We add all the numbers together, and all the variables

0.9r+3.78=0

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

0.9r=-3.78

r=-3.78/0.9

r=-4+0.18/0.9

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