Respuesta :

Answer: -1/4

Step-by-step explanation:

cancel the equal terms.

-2/3 - x + 3/6 = 1/12

calculate.

-1/6 - x = 1/12

move the constant to the right.

-x = 1/12 + 1/6

calculate the sum.

-x = 1/4

change the signs.

x = -1/4