Ecuaciones 5x + 6 = 21 , - 2x + 8 = - 2 , 6x + 2 = - 16 2x + 4 = 6 , - 4x - 6 = - 2 , x + 4 = 10 , - x + 1 = - 8 , x - 5 = 5 , - 4 + 2x = 0 , 2x + 4 = 0?
Ecuaciones 5x + 6 = 21 , - 2x + 8 = - 2 , 6x + 2 = - 16 2x + 4 = 6 , - 4x - 6 = - 2 , x + 4 = 10 , - x + 1 = - 8 , x - 5 = 5 , - 4 + 2x = 0 , 2x + 4 = 0.