0.5r-3=12+4.5

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Solution for 0.5r-3=12+4.5 equation: 



0.5r-3=12+4.5

We move all terms to the left:

0.5r-3-(12+4.5)=0

We add all the numbers together, and all the variables

0.5r-3-(16.5)=0

We add all the numbers together, and all the variables

0.5r-19.5=0

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

0.5r=19.5

r=19.5/0.5

r=39

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