Respuesta :

3 x[(9+4) - (2x6)]

= 3 x[(11) - (12)]

=3 x(11 - 12)

=3 x(-1)

=3(-1)

= -3

Hope this helps!

Only problem is that 9+4 is 13 not 11. So do the problem the same way but use 13 and it will be correct