-2+7(-1+2r)=-23

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Solution for -2+7(-1+2r)=-23 equation: 



-2+7(-1+2r)=-23

We move all terms to the left:

-2+7(-1+2r)-(-23)=0

We add all the numbers together, and all the variables

7(2r-1)-2-(-23)=0

We add all the numbers together, and all the variables

7(2r-1)+21=0

We multiply parentheses

14r-7+21=0

We add all the numbers together, and all the variables

14r+14=0

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

14r=-14

r=-14/14

r=-1

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