Respuesta :

-5a - 12a can also be rewritten as:

-5a + -12a, which would equal -17a
cher
-5a - 12a

Because they both have the same variable, all we have to do is subtract them from one another.

So, simply simplify this :)

-5a - 12a = -17a

So, our answer is -17a

~Hope I helped!~