Question

Rezolvați :|3x+6|=12
Va rog, e urgent!!!!!!!

Answer 1

Cazul 1, 3x+6 ≥ 0

|3x+6|=16 => 3x + 6 = 16 => 3x = 10

x = 10/3 (nu convine pt ca nu apartine lui Z)

Cazul 2, 3x+6 < 0

|3x+6|=16 => -(3x+6)=16 => -3x-6 = 16 => -3x = 24

x = 24/-3 = -8

S = {-8}