-20(r-11)-9=9r-50

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Solution for -20(r-11)-9=9r-50 equation: 



-20(r-11)-9=9r-50

We move all terms to the left:

-20(r-11)-9-(9r-50)=0

We multiply parentheses

-20r-(9r-50)+220-9=0

We get rid of parentheses

-20r-9r+50+220-9=0

We add all the numbers together, and all the variables

-29r+261=0

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

-29r=-261

r=-261/-29

r=+9

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