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

Vrronika778    1   11.05.2020 09:54    0