Ответ:
14/15
Пошаговое объяснение:
(х - 2/5) + 5/12 = 19/20
х - 2/5 = 19/20 - 5/12
х - 24/60 = 57/60 - 25/60
х - 24/60 = 32/60
х = 32/60 + 24/60
х = 56/60
х = 14/15
х - 2/5 = 57/60 - 25/60
х - 2/5 = 32/60
х = 32/60 + 2/5
х = 56/60 | : 4
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Ответ:
14/15
Пошаговое объяснение:
(х - 2/5) + 5/12 = 19/20
х - 2/5 = 19/20 - 5/12
х - 24/60 = 57/60 - 25/60
х - 24/60 = 32/60
х = 32/60 + 24/60
х = 56/60
х = 14/15
Ответ:
Пошаговое объяснение:
(х - 2/5) + 5/12 = 19/20
х - 2/5 = 19/20 - 5/12
х - 2/5 = 57/60 - 25/60
х - 2/5 = 32/60
х = 32/60 + 2/5
х = 32/60 + 24/60
х = 56/60 | : 4
х = 14/15