1. (3; -3):
a) x - y = 6
b) 2x + y = 3
2. (2; 7):
a) x + y = 9
b) 3x - 2y = -11
3. (5; -1):
a) x + y = 4
b) 2x - 3y = 13
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1. (3; -3):
a) x - y = 6
b) 2x + y = 3
2. (2; 7):
a) x + y = 9
b) 3x - 2y = -11
3. (5; -1):
a) x + y = 4
b) 2x - 3y = 13