0.1x/0.2-1=0.27x+0.18/0.04=1
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![0.1x/0.2-1=0.27x+0.18/0.04=1](/uploads/image/z/1586771-35-1.jpg?t=0.1x%2F0.2-1%3D0.27x%2B0.18%2F0.04%3D1)
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0.1x/0.2-1=0.27x+0.18/0.04=1
0.1x/0.2-1=0.27x+0.18/0.04=1
0.1x/0.2-1=0.27x+0.18/0.04=1
0.1x/0.2-1-(0.27x+0.18)/0.04=1
0.5x-1-6.75x-4.5=1
6.25x=-6.5
x=-1.04