Respuesta :

Answer:

d

Step-by-step explanation:

Answer:

D -5

Step-by-step explanation:

9+28−28=4+3−28

9=4−25

9−4=4−25−4

5a=−25

5

=

−

2

5

5a=-25

5a=−25

5a/5

=−25/5

a=-5