Решите уравнение ( 2 8/9x - 2 1/4) / 2 1/12 = 3/5 - вопрос №6711103289214211235 от manjester1 23.05.2020 20:12

Question

Математика: Решите уравнение ( 2 8/9x - 2 1/4) / 2 1/12 = 3/5

manjester1 · Answer

( 2 8/9x - 2 1/4) / 2 1/12 = 3/5( 2 8/9x - 2 1/4)= 3/5* 2 1/12 2 8/9x - 2 1/4= 3/5* 25/12 2 8/9x - 2 1/4= 1/1* 5/42 8/9x - 2 1/4= 1 1/42 8/9x = 1 1/4+2 1/42 8/9x =3 2/42 8/9x =3 1/2х=3 1/2:2 8/9х=7/2:26/9х=7/2*9/26х=63/52х=1 11/52...