Уравнение (3x-4)*8=6*7
(3х-4)*8=6*7 24х-32=42 24х=42+32 24х=74 х=74:24 х=3,08 (3*3,08-4)*8=6*7 (9,24-4)*8=42 5,24*8=42 41,92=42 42=42