Question

ПОМОГИТЕ ПОЖАЛУЙСТА УМОЛЯЮ!!!!

Answer 1

Ответ:

-2 5/12

Пошаговое объяснение:

= (3/7)a - 1 - (3/2)b - 3/4 = (3/7)a - (3/2)b - 1 3/4

при a = 4 2/3 ; b = 1 7/9

(3/7)a - (3/2)b - 1 3/4 = 3/7 * 4 2/3 - 3/2 * 1 7/9 - 1 3/4 = 3/7 * 14/3 - 3/2 * 16/9 - 1 3/4 = 2 - 8/3 - 1 3/4 = 2 - 2 2/3 - 1 3/4 = -2/3 - 1 3/4 = --8/12 - 1 9/12 = -1 17/12 = -2 5/12