Ответ:
2) 5 7/11-3х=1 9/11
3х=5 7/11-1 9/11=4 18/11-1 9/11=3 9/11
3х=3 9/11
х=3 9/11:3=3 9/11:3/1=42/11•1/3=42/33=1 3/11
х=1 3/11
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Ответ:
2) 5 7/11-3х=1 9/11
3х=5 7/11-1 9/11=4 18/11-1 9/11=3 9/11
3х=3 9/11
х=3 9/11:3=3 9/11:3/1=42/11•1/3=42/33=1 3/11
х=1 3/11