5r+3.5=6.6r-7.86

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Solution for 5r+3.5=6.6r-7.86 equation: 



5r+3.5=6.6r-7.86

We move all terms to the left:

5r+3.5-(6.6r-7.86)=0

We get rid of parentheses

5r-6.6r+7.86+3.5=0

We add all the numbers together, and all the variables

-1.6r+11.36=0

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

-1.6r=-11.36

r=-11.36/-1.6

r=7+0.16/1.6

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