-19+r=-7(1-r)-2r

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Solution for -19+r=-7(1-r)-2r equation: 



-19+r=-7(1-r)-2r

We move all terms to the left:

-19+r-(-7(1-r)-2r)=0

We add all the numbers together, and all the variables

r-(-7(-1r+1)-2r)-19=0



We calculate terms in parentheses: -(-7(-1r+1)-2r), so:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-2r+7r-7

We add all the numbers together, and all the variables

5r-7

Back to the equation:

-(5r-7)



We get rid of parentheses

r-5r+7-19=0

We add all the numbers together, and all the variables

-4r-12=0

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

-4r=12

r=12/-4

r=-3

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