please bantu yaaa materi persamaan nilai mutlak | 5x - 8 | - | 13 - 2x | = 0 please yang bisa jawab dapet pahala

|5x - 8| - |13 - 2x| = 0
5x - 2x - 8 - 13 = 0
3x - 21 = 0
3x = 0 + 21
3x = 21
x = 7

Materi : Nilai Mutlak
Bahasan : Persamaan Nilai Mutlak
Jawaban : x = - 5/3 atau x = 3

Langkah - langkah :
|5x - 8| - |13 - 2x| = 0
⇔ |5x - 8| = |13 - 2x|

⇒ 5x - 8 = 13 - 2x
5x + 2x = 13 + 8
7x = 21
x = 3

⇒ 5x - 8 = - (13 - 2x)
5x - 8 = - 13 + 2x
5x - 2x = - 13 + 8
3x = - 5
x = - 5/3