2 - 3x >= 8
-3x >= 6
3x =< -6
x =< -2
-x/2 * 1 < 7 /*2
-x * 2 < 14
-2x < 14
x > -7
1/4 * x + 1 >= 1/2 * x - 3 /*4
x + 4 >= 2x - 3
7 >= x
x =< 7
