persamaan nilai mutlak linear satu variabel [2y + 5]=[7-2y]

Mapel : Matematika
Kelas : X SMA
Bab : Mutlak

Pembahasan :
|2y + 5| = |7 - 2y|
(2y + 5)² = (7 - 2y)²
(2y + 5)² - (7 - 2y)² = 0
12(4y - 2) = 0
48y - 24 = 0
48y = 24
y = 24/48
y = 1/2

Hp = {1/2}