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