19(r+40)=931

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Solution for 19(r+40)=931 equation: 



19(r+40)=931

We move all terms to the left:

19(r+40)-(931)=0

We multiply parentheses

19r+760-931=0

We add all the numbers together, and all the variables

19r-171=0

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

19r=171

r=171/19

r=9

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