Пожалуйста решите уравнение
2×X×80=2×(250-10)

*х=3

2*x*80=2*(250-10);160x=2*240;160x=480;x=480:160;x=3.

2*80*x=500-20                                                                                                       160x=480                                                                                                               480/160=3                                                                                                           x=3