1427.
1) (2(x + y) - x + 6 = 0,
3x - (x - y) = 0;
3) [5x – 2 (y + 4) = 0,
(6 (2x + 3) - y - 41 = 0;
4) (2x + 3(x + y) - 11 = 0,
17(x+3y) - 6x +59=0.
2) (3(x+2y) - y - 27 = 0,
4(x + y) - 3x – 23 = 0;

Только номер 3) и

Radon86    2   29.04.2020 14:27    2