Contoh soal cara menyelesaikan nilai mutlak

1. |2x - 1| = 7
2. |2x - 1| = |x + 3|
penyelesaian:
1. |2x - 1| = 7
|2x| = 7 + 1
|2x| = 8
|x| = 8/2
|x| = 4
2. |2x - 1| = |x + 3|
2x - 1 = x + 3
2x - x = 1 + 3
x = 4
>> Smoga membantu) :