Nilai x yang memenuhi persamaan |5×+10|=-|3×+6|

|5x + 10| = -|3x + 6|
= -3x - 6
5x + 3x = -6-10
8x = -16
x = - 16/8
x = -2

[5x+10] = -[3x+6]
(5x + 10)² = (-3x - 6)²
(5x + 10)² - (-3x -6)² = 0
(5x + 10)² (3x+6)² = 0
(5x +10+(3x+6)) (5x + 10 - (3x+6)) = 0
(5x + 10+3x+6) (5x + 10-3x-6) = 0
(8x+16) (2x+4) = 0
→8x + 16 = 0
    8x         = -16
    x           = -16÷8
    x           = -2

→2x+4     = 0
    2x         =-4
    x           = -4÷2
    x           = -2
jadi hp adalah x=-2