1) 1)
| 1)
x + y =1,
2x + y = 4;
x + y = 0,
2)
3x + 2 y = -2;
1
x + y = 2,
2.
2x + 5y = 10;
x+y=5,
3x + y = 3;
x + y = 0,
2)
4x + 2 y = -2;
(2x+2y=4,
+4
3x - y = 2;
2)
| 1)
x + y =1,
2x + y = 4;
x + y = 0,
2)
3x + 2 y = -2;
1
x + y = 2,
2.
2x + 5y = 10;
x+y=5,
3x + y = 3;
x + y = 0,
2)
4x + 2 y = -2;
(2x+2y=4,
+4
3x - y = 2;
2)
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