45r-11=9r-42

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Solution for 45r-11=9r-42 equation: 



45r-11=9r-42

We move all terms to the left:

45r-11-(9r-42)=0

We get rid of parentheses

45r-9r+42-11=0

We add all the numbers together, and all the variables

36r+31=0

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

36r=-31

r=-31/36

r=-31/36

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