1) {2(x + y) - x + 6 = 0,
{3x - (x - y) = 0;
2) {3(x + 2y) - y - 27 = 0,
{4(x + y) – 3x – 23 = 0;
3) {5x – 2(+ 4) = 0,
{16 (2x + 3)- y - 41 = 0;
4) {2x + 3(x + y) - 11 = 0,
{17(x+3y) - 6x +59 = 0.​

Solnyshko8080    3   11.05.2020 11:41    0