Ответы и объяснения

2013-04-11T05:18:38+04:00

1)x=5/3

2)x=-2/0.7 x=-20/7

3)x=-3.6/2.1=-36/21=-12/7

 

Выбираем лучшее решение!

2013-04-11T05:36:38+04:00

x=5:3                          x=-2:0.7                            x=3.6:2.1

x=5|3                          x=-20:7                              x=36:21

x=1,66                   x=-2,86                            x=1,71