Question

Qual e a resposta ? x/9-x/6=-3

Answer 1

x/9 - x/6 = -3
6x - 9x/54 = -3
-3x/54 = -3

-3x = -162
x = -162/-3
x = 54

Answer 2

Vamos lá :

x / 9 - x / 6 = - 3

Mmc (9 , 6) = 18

9 , 6 | 3
3 , 2 | 3
1 , 2 | 2
1 , 1

2x - 3x = - 54
- x = - 54 . (- 1)
  x = + 54

Espero ter ajudado !!!