|2y+5|=|7-2y| sama caranya ya kak

Mapel : Matematika
Kelas : X SMA
Materi : Persamaan Mutlak

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

Hp = {1/2}