3r/8=12

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Solution for 3r/8=12 equation: 



3r/8=12

We move all terms to the left:

3r/8-(12)=0

We multiply all the terms by the denominator


3r-12*8=0

We add all the numbers together, and all the variables

3r-96=0

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

3r=96

r=96/3

r=32

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