When x is an integer, the difference between formula 9x + 2 / 3 and 3x-14 / 2 is greater than 6 but not greater than 8

When x is an integer, the difference between formula 9x + 2 / 3 and 3x-14 / 2 is greater than 6 but not greater than 8

9x+2/3-3x+7
=6x+23/3
When 6