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
Solution:
(d) x – 4y – 14 = 0
5x – y – 13 = 0
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