http://ne-letay.livejournal.com/ ([identity profile] ne-letay.livejournal.com) wrote in [personal profile] plus25c 2010-08-07 11:55 pm (UTC)

15x=13x+8
15x-13x=8
2x=8
x=4
4*15=60

это я попыталась детскую задачку решить :) ну, просто помню, как дочка решала - всегда уравнения строила.

Post a comment in response:

This account has disabled anonymous posting.
If you don't have an account you can create one now.
HTML doesn't work in the subject.
More info about formatting