Respuesta :

Answer:

x = 5

Step-by-step explanation:

6x + 3 = 9x - 12

     +12         +12

6x + 15 = 9x

-6x         -6x

15 = 3x

/3    /3

x = 5

To check work:

6(5) + 3 = 9(5) - 12

30 + 3 = 45 - 12

33 = 33