Respuesta :

Answer:

a) -7+(-8) *Addition plus subtraction make subtraction

    -7-8= -15

b) -9+(-3) *addition plus subtraction make subtraction

   -9-3= -12

Hope this helps!

Answer:

Answer:

A: -25

B: -12

Step-by-step explanation:

Adding a negative is just like subtracting a negative. So you can just say -7 -8 = 15 and -9 -3 = 12.