2r-7=5r+8

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Solution for 2r-7=5r+8 equation: 



2r-7=5r+8

We move all terms to the left:

2r-7-(5r+8)=0

We get rid of parentheses

2r-5r-8-7=0

We add all the numbers together, and all the variables

-3r-15=0

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

-3r=15

r=15/-3

r=-5

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