30+r=20r

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Solution for 30+r=20r equation: 



30+r=20r

We move all terms to the left:

30+r-(20r)=0

We add all the numbers together, and all the variables

-19r+30=0

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

-19r=-30

r=-30/-19

r=1+11/19

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