-9r+2=-10r-1

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Solution for -9r+2=-10r-1 equation: 



-9r+2=-10r-1

We move all terms to the left:

-9r+2-(-10r-1)=0

We get rid of parentheses

-9r+10r+1+2=0

We add all the numbers together, and all the variables

r+3=0

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

r=-3

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