-2r-7=-10-5r

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



-2r-7=-10-5r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-2r+5r+10-7=0

We add all the numbers together, and all the variables

3r+3=0

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

3r=-3

r=-3/3

r=-1

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