2r+8=5r-1

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Solution for 2r+8=5r-1 equation: 



2r+8=5r-1

We move all terms to the left:

2r+8-(5r-1)=0

We get rid of parentheses

2r-5r+1+8=0

We add all the numbers together, and all the variables

-3r+9=0

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

-3r=-9

r=-9/-3

r=+3

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