1256. 1) 5x – 8y + 51
2,5 x + 3y - 23,5 = 0;
6 x - 5y + 26 = 0,
(3x + 17y - 65 = 0.
1257. 1)
8x + 7y + 53 = 0,
4x - 5y + 1 = 0;
7x + 9y + 48 = 0,
16x + 3y + 27 = 0.​

nikitalazarev2    1   30.04.2020 10:21    1