For what value of k, the pair of linear equations 3x - ky + 7 = 0,x - 2y + 5 = 0 has unique solution.

Given pair of linear equations are :
3x - ky + 7 = 0
and x - 2y + 5 = 0
Here, we have
a₁ = 3, b₁ = -k
^{a2_{= 1, b}2^{2 = -2}}For unique solution
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∴ The given system of linear equations has unique solution for all real values of k other than 6.

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