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3.4(5.8r-3.1)=21.8
We move all terms to the left:
3.4(5.8r-3.1)-(21.8)=0
We add all the numbers together, and all the variables
3.4(5.8r-3.1)-21.8=0
We multiply parentheses
17r-10.54-21.8=0
We add all the numbers together, and all the variables
17r-32.34=0
We move all terms containing r to the left, all other terms to the right
17r=32.34
r=32.34/17
r=1+11.447761194/12.6865671642
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