2(1-8r)-2r=-31-7r

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Solution for 2(1-8r)-2r=-31-7r equation: 



2(1-8r)-2r=-31-7r

We move all terms to the left:

2(1-8r)-2r-(-31-7r)=0

We add all the numbers together, and all the variables

2(-8r+1)-2r-(-7r-31)=0

We add all the numbers together, and all the variables

-2r+2(-8r+1)-(-7r-31)=0

We multiply parentheses

-2r-16r-(-7r-31)+2=0

We get rid of parentheses

-2r-16r+7r+31+2=0

We add all the numbers together, and all the variables

-11r+33=0

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

-11r=-33

r=-33/-11

r=+3

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