| × + 1 | = | × - 2 |

Bab Nilai Mutlak
Matematika SMA Kelas X

|x + 1| = |x - 2|

x + 1 = x - 2
x - x = - 2 - 1
0 = - 3

tidak ada penyelesaian

x + 1 = -x + 2
x + x = 2 - 1
2x = 1
x = 1/2

HP = { 1/2 }