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1.4(2.9r-9)=29.6
We move all terms to the left:
1.4(2.9r-9)-(29.6)=0
We add all the numbers together, and all the variables
1.4(2.9r-9)-29.6=0
We multiply parentheses
2.8r-12.6-29.6=0
We add all the numbers together, and all the variables
2.8r-42.2=0
We move all terms containing r to the left, all other terms to the right
2.8r=42.2
r=42.2/2.8
r=15+0.2/2.8
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