tentukan penyelesaian persamaan berikut! |x-2|=6 |3x-5|=7

|x-2| = 6

Jika nilai (x-2) negatif (-)
- (x-2) = 6
x-2 = -6
x = -4

Jika nilai (x-2) positif (+)
x-2 = 6
x = 8


|3x-5|=7

Jika nilai (3x-5) negatif (-)
- (3x-5) = 7
3x-5 = -7
3x = -2
x = -2/3

Jika nilai (3x-5) positif (+)
3x-5 = 7
3x = 12
x = 4


- Oswyth -

|x - 2| = 6
1) x - 2 = 6 => x = 6 + 2 => x = 8
2) x - 2 = -6 => x = -6 + 2 => x = -4
HP = {-4, 8}

|3x - 5| = 7
1) 3x - 5 = 7 => 3x = 12 => x = 4
2) 3x - 5 = -7 => 3x = -2 => x = -2/3
HP = {-2/3, 4}