Ответ: x=2
Пошаговое объяснение:
3/5+3/4х=42/20
3/4х=42/20-3/5
3/4х=42/20-12/20
3/4х=30/20
х=30/20 : 3/4
х =30/20 * 4/3
х =10/5 * 1/1
х = 10 : 5
х = 2
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Ответ: x=2
Пошаговое объяснение:
3/5+3/4х=42/20
3/4х=42/20-3/5
3/4х=42/20-12/20
3/4х=30/20
х=30/20 : 3/4
х =30/20 * 4/3
х =10/5 * 1/1
х = 10 : 5
х = 2