10r+4=211-13r

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Solution for 10r+4=211-13r equation: 



10r+4=211-13r

We move all terms to the left:

10r+4-(211-13r)=0

We add all the numbers together, and all the variables

10r-(-13r+211)+4=0

We get rid of parentheses

10r+13r-211+4=0

We add all the numbers together, and all the variables

23r-207=0

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

23r=207

r=207/23

r=9

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