3r-8-1=9+5r

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Solution for 3r-8-1=9+5r equation: 



3r-8-1=9+5r

We move all terms to the left:

3r-8-1-(9+5r)=0

We add all the numbers together, and all the variables

3r-(5r+9)-8-1=0

We add all the numbers together, and all the variables

3r-(5r+9)-9=0

We get rid of parentheses

3r-5r-9-9=0

We add all the numbers together, and all the variables

-2r-18=0

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

-2r=18

r=18/-2

r=-9

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