2r-5=15-7r+10r

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Solution for 2r-5=15-7r+10r equation: 



2r-5=15-7r+10r

We move all terms to the left:

2r-5-(15-7r+10r)=0

We add all the numbers together, and all the variables

2r-(3r+15)-5=0

We get rid of parentheses

2r-3r-15-5=0

We add all the numbers together, and all the variables

-1r-20=0

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

-r=20

r=20/-1

r=-20

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