Question

хелп
нада обрати 1-4 до а-д

Answer 1

Пошаговое объяснение:

1)

1 5/7х + 5 = 6 1/2

1 5/7х = 6 1/2 - 5

1 5/7х = 1 1/2

х = 1 1/2 : 1 5/7

х = 3/2 : 12/7

х = 3/2 * 7/12

х = 1/2 * 7/4

х = 7/8 Г

2)

3/16х + 2 1/8 = 4

3/16х = 4 - 2 1/8

3/16х = 3 8/8 - 2 1/8

3/16х = 1 7/8

х = 1 7/8 : 3/16

х = 15/8 * 16/3

х = 5/1 * 2/1

х = 10/1

х = 10 В

3)

5 - 7/2х = 3 1/4

7/2х = 5 - 3 1/4

7/2х = 4 4/4 - 3 1/4

7/2х = 1 3/4

х = 1 3/4 : 7/2

х = 7/4 * 2/7

х = 1/2 * 1/1

х = 1/2 А

4)

4/5х - 1/2 = 1 1/10

4/5х = 1 1/10 + 1/2

4/5х = 1 1/10 + 5/10

4/5х = 1 6/10

х = 1 6/10 : 4/5

х = 16/10 * 5/4

х = 4/2 * 1/1

х = 4/2

х = 2 Д