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5.8(7.9r-4.4)=21.4
We move all terms to the left:
5.8(7.9r-4.4)-(21.4)=0
We add all the numbers together, and all the variables
5.8(7.9r-4.4)-21.4=0
We multiply parentheses
40.6r-25.52-21.4=0
We add all the numbers together, and all the variables
40.6r-46.92=0
We move all terms containing r to the left, all other terms to the right
40.6r=46.92
r=46.92/40.6
r=1+2.72413793103/17.5
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