Пошаговое объяснение:
(4х - 2)/5 = 5/7
7 * (4х - 2) = 5 * 5
28х - 14 = 25
28х = 25 + 14
28х = 39
х = 39 : 28
х = 39/28
х = 1 11/28
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Пошаговое объяснение:
(4х - 2)/5 = 5/7
7 * (4х - 2) = 5 * 5
28х - 14 = 25
28х = 25 + 14
28х = 39
х = 39 : 28
х = 39/28
х = 1 11/28