(3/4x - 2/3) * 15 = 8
Упростим левую часть уравнения:
(45/4x - 30/3) = 8(45/4x - 30/4) = 8(45x - 30)/4 = 845x - 30 = 3245x = 62x = 62/45x ≈ 1.3778
Ответ: D) 1 1/7
(3/4x - 2/3) * 15 = 8
Упростим левую часть уравнения:
(45/4x - 30/3) = 8
(45/4x - 30/4) = 8
(45x - 30)/4 = 8
45x - 30 = 32
45x = 62
x = 62/45
x ≈ 1.3778
Ответ: D) 1 1/7