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6+r+1.30=29.50
We move all terms to the left:
6+r+1.30-(29.50)=0
We add all the numbers together, and all the variables
r+6+1.30-(29.5)=0
We add all the numbers together, and all the variables
r-22.2=0
We move all terms containing r to the left, all other terms to the right
r=22.2
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