Question

Распишите пошагово примеры. Розвяжiть рiвняння. ( 2/3x+1/6)*1 1/5=2 3/5. Виконайте дii. (4,5 - 1/3):2/9 - (3,5 + 1/3)

Answer 1

Ответ:

1.

(2/3x+1/6)*1 1/5=2 3/5

2/3х + 1/6 = 2 3/5 : 1 1/5

2/3х + 1/6 = 13/5 : 6/5

2/3х + 1/6 = 13/5 * 5/6

2/3х + 1/6 = 13/6

2/3х = 13/6 - 1/6

2/3х = 12/6

2/3х = 2

х = 2 : 2/3

х = 2 * 3/2

х = 3

2.

(4,5-1/3):2/9-(3,5+1/3) = (45/10-1/3):2/9-(35/10+1/3) = (9/2-1/3):2/9-(7/2+1/3) =

25/6:2/9-23/6 = 25/6*9/2-23/6 = 75/4 - 23/6 = (75*3-23*2)/12 =

179/12 = 14 11/12