Решите уравнения: 1) 2/3y - 1/3 = 5/9y 2) 3/4y - 2/3 - вопрос №3473003123135923423712 от cote18 09.06.2021 12:09

Question

Математика: Решите уравнения: 1) 2/3y - 1/3 = 5/9y 2) 3/4y - 2/3 = 7/12

cote18 · Answer

2/3y - 1/3 = 5/9y2/3y- 5/9y  = 1/3 (6/9-5/9)у=1/31/9 у=1/3у=1/3 :1/9у = 33/4y - 2/3 = 7/123/4y  = 7/12 + 2/33/4у= 7/12+8/123/4у= 15/12у=15/12:3/4у= 5/3 = 1 2/3...