1. 1) |9,6| - |-4,7| = 9,6 + 4,7 = 4,9

2) |-15| • |-4| = 15•4 = 60

3) |7/15| + |-5/18| =7/15 + 5/18 = 67/90

4) |-4 2/7| : |-3 3/4| = 4 2/7 : 3 3/4 = 30/7 : 15/4 = 30/7 • 4/15 = 2/7•4 = 8/7 = 1 1/7

2. -4,5 ; 4,5

3. |х| - 4 = 5

|х| - 4 = 5

|х| = 5 + 4

|х| = 9

х 1 = 9; х2 = 9



1. 1) |9,6| - |-4,7| = 9,6 + 4,7 = 4,9

2) |-15| • |-4| = 15•4 = 60

3) |7/15| + |-5/18| =7/15 + 5/18 = 67/90

4) |-4 2/7| : |-3 3/4| = 4 2/7 : 3 3/4 = 30/7 : 15/4 = 30/7 • 4/15 = 2/7•4 = 8/7 = 1 1/7

2. -4,5 ; 4,5

3. |х| - 4 = 5

|х| - 4 = 5

|х| = 5 + 4

|х| = 9
х 1 = -9; х2 = 9