40r-360=10r+30

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Solution for 40r-360=10r+30 equation: 



40r-360=10r+30

We move all terms to the left:

40r-360-(10r+30)=0

We get rid of parentheses

40r-10r-30-360=0

We add all the numbers together, and all the variables

30r-390=0

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

30r=390

r=390/30

r=13

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