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1.8r+18.62+4.8r=-0.46+5.4r
We move all terms to the left:
1.8r+18.62+4.8r-(-0.46+5.4r)=0
We add all the numbers together, and all the variables
1.8r+4.8r-(5.4r-0.46)+18.62=0
We add all the numbers together, and all the variables
6.6r-(5.4r-0.46)+18.62=0
We get rid of parentheses
6.6r-5.4r+0.46+18.62=0
We add all the numbers together, and all the variables
1.2r+19.08=0
We move all terms containing r to the left, all other terms to the right
1.2r=-19.08
r=-19.08/1.2
r=-15+1/1.1111111111111
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