a . daca x -3 = 0 ; x = 3
x + 2 =0 ; x = -2
b. 17x -5x = - 3 - 1 ; 12x = - 4 ; x = - 4 /12 = - 1 / 3
c. | x / 6 - 1 /2 | = 3 - 2 /3
| x / 6 - 1 /2 | = 7 /3
x /6 - 1 /2 = 7 /3 x / 6 - 1 /2 = - 7 /3
x / 6 = 7 /3 + 1 /2 x / 6 = - 7 /3 + 1 /2
x = 6 · 17 /6 =17 x = 6· ( -11 / 6) = - 11
d. 12| x +3| = 6 ; | x + 3| = 1 /2
x + 3 =1 / 2 x + 3 = -1 /2
x= -3 + 1 /2 = - 5 /2 x = - 1 /2 - 3 = - 7 / 2