12+0.5r-1=4r

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Solution for 12+0.5r-1=4r equation: 



12+0.5r-1=4r

We move all terms to the left:

12+0.5r-1-(4r)=0

We add all the numbers together, and all the variables

-3.5r+11=0

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

-3.5r=-11

r=-11/-3.5

r=3+0.5/3.5

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