38=r/10+30

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Solution for 38=r/10+30 equation: 



38=r/10+30

We move all terms to the left:

38-(r/10+30)=0

We get rid of parentheses

-r/10-30+38=0

We multiply all the terms by the denominator


-r-30*10+38*10=0

We add all the numbers together, and all the variables

-1r+80=0

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

-r=-80

r=-80/-1

r=+80

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