Question

Mohon bantuanny, No 1 yah pake cara

Answer 1

2(x - k) < (3x - 2)/2 + 2kx .... kali 2
=> 4(x - k) < (3x - 2) + 4kx
=> 4x - 4k < 3x - 2 + 4kx
=> 4x - 3x - 4kx < 4k - 2
=> x - 4kx < 4k - 2
=> x(1 - 4k) < 4k - 2
=> x < (4k - 2)/(1 - 4k)
=> x < 2

(4k - 2)/(1 - 4k) = 2
4k - 2 = 2 - 8x
12k = 4
k = 1/3

atau substitusikan x = 2 ke pers langsung
2(2 - k) = (3(2) - 2)/2 + 2k(2)
4 - 2k = 2 + 4k
-6k = -2
k = 1/3