Ответ:
Пошаговое объяснение:
7)
х - 2 = 4/9 * 3/13 : 2/13
х - 2 = 4/3 * 1/13 : 2/13
х - 2 = 4/39 : 2/13
х - 2 = 4/39 * 13/2
х - 2 = 2/3 * 1/1
х - 2 = 2/3
х = 2/3 + 2
х = 2. 2/3
8)
2х - 1 = 3 * 2 / 5
2х - 1 = 6/5
2х - 1 = 1,2
2х = 1,2 + 1
2х = 2,2
х = 2,2 : 2
х = 1,1
9)
3 - х = 0,1 * 0,5 / 0,3
3 - х = 0,05/0,3
3 - х = 5/100 : 3/10
3 - х = 5/100 * 10/3
3 - х = 5/10 * 1/3
3 - х = 5/30
3 - х = 1/6
х = 3 - 1/6
х = 2. 6/6 - 1/6
х = 2. 5/6
10)
3 - х = 3. 1/5 * 1. 2/3 : 0,1
3 - х = 16/5 * 5/3 : 1/10
3 - х = 16/3 : 1/10
3 - х = 16/3 * 10/1
3 - х = 160/3
3 - х = 53. 1/3
х = 3 - 53. 1/3
х = -50. 1/3
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Answers & Comments
Ответ:
Пошаговое объяснение:
7)
х - 2 = 4/9 * 3/13 : 2/13
х - 2 = 4/3 * 1/13 : 2/13
х - 2 = 4/39 : 2/13
х - 2 = 4/39 * 13/2
х - 2 = 2/3 * 1/1
х - 2 = 2/3
х = 2/3 + 2
х = 2. 2/3
8)
2х - 1 = 3 * 2 / 5
2х - 1 = 6/5
2х - 1 = 1,2
2х = 1,2 + 1
2х = 2,2
х = 2,2 : 2
х = 1,1
9)
3 - х = 0,1 * 0,5 / 0,3
3 - х = 0,05/0,3
3 - х = 5/100 : 3/10
3 - х = 5/100 * 10/3
3 - х = 5/10 * 1/3
3 - х = 5/30
3 - х = 1/6
х = 3 - 1/6
х = 2. 6/6 - 1/6
х = 2. 5/6
10)
3 - х = 3. 1/5 * 1. 2/3 : 0,1
3 - х = 16/5 * 5/3 : 1/10
3 - х = 16/3 : 1/10
3 - х = 16/3 * 10/1
3 - х = 160/3
3 - х = 53. 1/3
х = 3 - 53. 1/3
х = -50. 1/3