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.3O+3=4.8
We move all terms to the left:
.3O+3-(4.8)=0
We add all the numbers together, and all the variables
.3O-1.8=0
We move all terms containing O to the left, all other terms to the right
.3O=1.8
O=1.8/.3
O=6+2.2204460492503E-16/.3
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