1) х - у - 2 = 0, 3) (3x+y – 4 = 0, 5) (x + by + 2 = 0,
2x – 3y +1 = 0;
[5х + у — 10 = 0; 0, 5х - у - 6 = 0;
2) (-x+y – 4 = 0,
|4х +y+1 = 0;
4) [8x – 3y - 7 = 0,
3х +y – 9 = 0;
6) (12х - у - 18 = 0,
x + 0,5у – 5 = 0.
1426.
1) (4х + 3y – 5 = 0,
1х - у - 3 = 0;
2) х - у - 7 = 0,
5х – 3у – 1 = 0;
3) (6х + 5у – 6 = 0,
2x +y+ 2 = 0.
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karinnka2002    3   13.05.2020 08:19    0