1. х=36*11/(11*3)=12
2. 5/20х-4/20х=0.1, 1/20х=0.1, 1=2х, х=1/2=0.5
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Answers & Comments
1. х=36*11/(11*3)=12
2. 5/20х-4/20х=0.1, 1/20х=0.1, 1=2х, х=1/2=0.5