Respuesta :

Start by changing your minus signs to plus negatives.

So change the -6 to plus a negative 6

and change the -7x to plus a negative 7z.

Now combine like terms → your "z" terms and your numbers.

So -4z + -7x is -11z and -6 + 3 is -3.

Take a look below.

Ver imagen TheBlueFox
RELAXING NOICE
Relax