Ответ:
х = 1 2/5
Пошаговое объяснение:
(6/7x−1/5)⋅1/4=1/4
(6/7)х - 1/5 = 1/4 : 1/4
(6/7)х - 1/5 = 1
(6/7)х = 1 + 1/5 = 6/5
х = 6/5 : 6/7
х = 6/5 · 7/6 = 7/5 = 1 2/5
Проверка:
(6 /7 · 7/5 - 1/5) · 1/4 = 1/4 - верно
6/5 1
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Verified answer
Ответ:
х = 1 2/5
Пошаговое объяснение:
(6/7x−1/5)⋅1/4=1/4
(6/7)х - 1/5 = 1/4 : 1/4
(6/7)х - 1/5 = 1
(6/7)х = 1 + 1/5 = 6/5
х = 6/5 : 6/7
х = 6/5 · 7/6 = 7/5 = 1 2/5
Проверка:
(6 /7 · 7/5 - 1/5) · 1/4 = 1/4 - верно
6/5 1