4r-1=8

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Solution for 4r-1=8 equation: 



4r-1=8

We move all terms to the left:

4r-1-(8)=0

We add all the numbers together, and all the variables

4r-9=0

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

4r=9

r=9/4

r=2+1/4

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