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2(13.2r-3.1)=62.7
We move all terms to the left:
2(13.2r-3.1)-(62.7)=0
We add all the numbers together, and all the variables
2(13.2r-3.1)-62.7=0
We multiply parentheses
26r-6.2-62.7=0
We add all the numbers together, and all the variables
26r-68.9=0
We move all terms containing r to the left, all other terms to the right
26r=68.9
r=68.9/26
r=2+5.8275862068965/8.9655172413793
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