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4.1(6.2r-8.1)=14.2
We move all terms to the left:
4.1(6.2r-8.1)-(14.2)=0
We add all the numbers together, and all the variables
4.1(6.2r-8.1)-14.2=0
We multiply parentheses
24.6r-33.21-14.2=0
We add all the numbers together, and all the variables
24.6r-47.41=0
We move all terms containing r to the left, all other terms to the right
24.6r=47.41
r=47.41/24.6
r=1+8.11743772242/8.75444839858
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