B) 2 1/3 - 1 2/3 x = 1 5/21 в) (8/15 + 2/9y) : 3/5 - вопрос №11587283213123152181529352 от twenty21 20.10.2022 08:01

Question

Математика: B) 2 1/3 - 1 2/3 x = 1 5/21 в) (8/15 + 2/9y) : 3/5 = 2 решите уравнения

twenty21 · Answer

B) 2 1/3 - 1 2/3x = 1 5/21-1 2/3x = 1 5/21 - 2 1/3-1 2/3x = - 23/21x = 23/35в) (8/15 + 2/9у) : 3/5 = 25 (8/15 + 2/9у) = 68/15 + 2/9у = 6/52/9у = 10/15у = 3...