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0.3x-0.6-20=1
We move all terms to the left:
0.3x-0.6-20-(1)=0
We add all the numbers together, and all the variables
0.3x-21.6=0
We move all terms containing x to the left, all other terms to the right
0.3x=21.6
x=21.6/0.3
x=72+3.5527136788E-15/0.3
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