Solve the inequality 2x - 5 <= -x + 12 - 3x + 7. Give your answer as an interval.
2x - 5 <= -x + 12 -3x + 7
2x - 5 <= -4x + 19
2x + 4x < = 19 + 5
6x < = 24
x < = 24 / 6
x < = 6