Tentukan nilai x yang memenuhi persamaan | 4-3x | = | -4 |

4x - 3x = -4
4x = -4 + 3
4x = -1
x = -1/4
4x - 3x = 4
4x = 4 + 3
4x = 7
x = 7/4
Hp = {-1/4, 7/4}