Respuesta :

GeothermalBroom

Answer:

-3 + x     or x -3

Step-by-step explanation:

Start with the brackets one by one

3(x + 3) Multiply the 3 outside the bracket to everything inside

3 × x = 3x

3 x 3 = 9

3x + 9 -2(x + 6)

-2(x + 6) = -2x - 12

3x + 9 -2x - 12 = x -3