3r-8=15

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Solution for 3r-8=15 equation: 



3r-8=15

We move all terms to the left:

3r-8-(15)=0

We add all the numbers together, and all the variables

3r-23=0

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

3r=23

r=23/3

r=7+2/3

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