If the system of simultaneous linear equations 3 {x}-4 {y}+ {kz}+13=0, {x}+2 {y}- {z}-9=0 and {kx}- {y}+3 {z}+7=0 has a unique solution {x}=\alpha, {y}=\beta, {z}=\gamma for {k} \neq {m} and 2 \beta-\gamma=8 then \alpha+ {m} =

Correct Answer is : None of the above

AP EAPCET 06-Jul-2022 Shift 2 Paper

Section: Mathematics

Question : 4 of 160

Marks: +1, -0

If the system of simultaneous linear equations 3x−4y+kz+13=0,x+2y−z−9=0 and kx−y+3z+7=0 has a unique solution x=α,y=β,z=γ for k≠m and 2β−γ=8 then α+m =

20
8
5
29
None of the above

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3	−4	k
1	2	−1
k	−1	3