nilai × yang memenuhi persamaan | ×-1 | + | ×-3 | = 2

Kelas 10 Matematika
Bab Nilai Mutlak

|x - 1| + |x - 3| = 2

x - 1 + x - 3 = 2
2x = 2 + 4
x = 6/2
x = 3

x - 1 + x - 3 = -2
2x = -2 + 4
x = 2/2
x = 1

maka, x = 1 atau x = 3