Решите уравнение: (х + 57) / 2,5 = (2х - 1) / 4
(x + 57) / 2.5 = (2x - 1) / 4 4*(x + 57) = 2.5 * (2x - 1) 4x + 228 = 5x - 2.5 5x - 4x = 228 + 2.5 x = 230.5