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4.9(12.2r-8.4)=26.4
We move all terms to the left:
4.9(12.2r-8.4)-(26.4)=0
We add all the numbers together, and all the variables
4.9(12.2r-8.4)-26.4=0
We multiply parentheses
58.8r-41.16-26.4=0
We add all the numbers together, and all the variables
58.8r-67.56=0
We move all terms containing r to the left, all other terms to the right
58.8r=67.56
r=67.56/58.8
r=1+3.17391304348/21.3043478261
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