| x-1 | + 2x =6 tentukan penyelesaianya

Mapel : Matematika
Kelas : X SMA
Bab : Mutlak

Pembahasan :
|x - 1| + 2x = 6

x - 1 + 2x = 6
3x - 1 = 6
3x = 7
x = 7/3

x - 1 + 2x = -6
3x - 1 = -6
3x = -5
x = -5/3

Hp : {-5/3 , 7/3}

x-1 + 2x = 6
3x = 7
x = 7/3

atau
x-1 + 2x = -6
3x = -5
x = -5/3

Hp = {-5/3,7/3}