Решите уравнение (5 класс) (1/4+1/5) х(икс) =1 - вопрос №6930491514151453181342 от Mmamagadzhieva 31.01.2020 07:02

Question

Математика: Решите уравнение (5 класс) (1/4+1/5) х(икс) =1 4/5 (3 1/8+1 3/4)х(икс)=2 1/6 (2 1/12-1 5/6) х(икс)=3/4 решите

Mmamagadzhieva · Answer

(1/4 + 1/5) x = 1 4/51/4 + 1/5 = 9/209/20 • x = 1 4/5X = 1 4/5 : 9/20 = 9/5 : 9/20 = 4x = 4(3 1/8 + 1 3/4) x = 2 1/63 1/8 + 1 3/4 = 4 7/84 7/8 • x = 2 1/6x = 2 1/6 : 4 7/8 = 4/9X = 4/9(2 1/12 - 1 5/6) x = 3/42 1/12 - 1 5/6 = 3/123/12 • x = 3/4x = 3/4 : 3/12 = 3X = 3...