(2/3 х + 1/6) • 1 1/5 = 2 3/5
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Ответ:

3

Пошаговое объяснение:

(2/3х + 1/6) * 1 1/5 = 2 3/5

2/3х + 1/6 = 2 3/5 : 1 1/5

2/3х + 1/6 = 13/5 : 6/5

2/3х + 1/6 = 13/5 * 5/6

2/3х + 1/6 = 13/6

2/3х = 13/6 - 1/6

2/3х = 12/6

2/3х = 2

х = 2 : 2/3

х = 2 * 3/2

х = 6/2

х = 3