1. A pair of linear equations which has a
unique solution x = 2, y = -3 is
(a) x + y = -1; 2x - 3y = -5
(b) 2x + 5y = -11; 4x + 10y = -22
(c) 2x - y = 1 ; 3x + 2y = 0
(d) x - 4y - 14 = 0; 5x - y - 13 = 0
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Answer:
b
Explanation:
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