Ответы и объяснения

2013-04-20T08:41:37+00:00
2013-04-20T08:55:30+00:00

 5 / x - 3 = - 6/ 13

5 / x -3 + 6 /13 =0

(65 + 6x -18) / 13 (x -3) =0

ОДЗ

13 (x - 3) =0

x - 3 = 0

x = 3

 

65 + 6x -18 =0

6x = - 65 + 18

6x = -47

x = - 47 / 6