7x - 5/4 -x > 0
7x - 1 1/4 - x > 0
6x - 1 1/4 > 0
6x = 1 1/4 = 5/4
x = 5/ 4×6
7x - 5/4 - x > 0
6x - 5/4
x = 5/4×6 = 5/24
x > 5/24
вроде так
7x - 5/4 -x > 0
7x - 1 1/4 - x > 0
6x - 1 1/4 > 0
6x = 1 1/4 = 5/4
x = 5/ 4×6
7x - 5/4 - x > 0
6x - 5/4
x = 5/4×6 = 5/24
x > 5/24
вроде так