как решить уравнение 1 1/2x-9 3/7) + 5 8/21=6 5/14

(1 1/2x - 9 3/7) + 5 8/21 = 6 5/14

(3/2x - 66/7) + 113/21 = 89/14

3/2x - 66/7 = 89/14 - 113/21

3/2x - 66/7 = 267/42 - 226/42

3/2x - 66/7 = (267 - 226) / 42

3/2x - 66/7 = 41/42

3/2x = 41/42 + 66/7

3/2x = 41/42 + 396/42

3/2x = (41 + 396) / 42

3/2x = 437/42

х = 437/42 : 3/2

х = 437/42 * 2/3

х = 2/42 * 437/3

х = 1/21 * 437/3

х = 437 / (21 * 3)

х = 437/63

х = 6 59/63

Ответ: 6 59/63