2x + 3 = -3x + 1
2x + 3x = 1 - 3
5x = -2
x = -2/5
1/3x + 2x ≥ 4/3 + 2
7/3x ≥ 10/3
x ≥ 10/3 * 3/7
x ≥ 10/7
x - 7 < 5x + 1
x - 5x < 8
-4x < 8
x > -2
