Решите уравнение (8/15плюс2/9x): 3/5=2 - вопрос №680032381529352 от Xtrail 03.12.2020 18:43

Question

Математика: Решите уравнение (8/15плюс2/9x): 3/5=2

Xtrail · Answer

(8/15 + 2/9х)/ 3/5 = 28/15 + 2/9х = 2 × 3/58/15 + 2/9х = 1,28/15 + 2/9х - 1,2 = 08/15 - 1 2/10 + 2/9х = 016/30 - 1 6/30 + 2/9х = 016/30 - 36/30 + 2/9х = 0-20/30 + 2/9х = 02/9х = 20/30х = 20/30 : 2/9х = 20/30 × 9/2х = 180/60х = 3...