|2-x|=2x-1 Persamaan nilai mutlak

Bab Nilai Mutlak
Matematika SMA Kelas X

|2 - x| = 2x - 1

2 - x = 2x - 1
-x - 2x = -1 - 2
-3x = -3
x = -3/-3
x = 1 (memenuhi)

2 - x = - 2x + 1
-x + 2x = 1 - 2
x = -1 (tidak memenuhi)

HP = { 1 }