2(-10r-10)=2-9r

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Solution for 2(-10r-10)=2-9r equation: 



2(-10r-10)=2-9r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-20r-(-9r+2)-20=0

We get rid of parentheses

-20r+9r-2-20=0

We add all the numbers together, and all the variables

-11r-22=0

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

-11r=22

r=22/-11

r=-2

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