-19=9r+8(3r+10)

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Solution for -19=9r+8(3r+10) equation: 



-19=9r+8(3r+10)

We move all terms to the left:

-19-(9r+8(3r+10))=0



We calculate terms in parentheses: -(9r+8(3r+10)), so:

9r+8(3r+10)

We multiply parentheses

9r+24r+80

We add all the numbers together, and all the variables

33r+80

Back to the equation:

-(33r+80)



We get rid of parentheses

-33r-80-19=0

We add all the numbers together, and all the variables

-33r-99=0

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

-33r=99

r=99/-33

r=-3

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