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log (4x- 2) > log(x-7)
4x -2 > x - 7 dgnbatas 4x-2 > 0 atau x- 7 > 0
(4x-x) > -7 + 2 , pembatas 4x > 2 atau x > 7
3x > - 5 , batas x > 1/2 atau x > 7
x > -5/4 (tidak memenuhi)
x = { }