Respuesta :

johnstonj59

Answer:

d=3.5

Step-by-step explanation:

First, you need to find out what the three times d is equal to.

[tex]15-4.5=10.5[/tex]

Now, just divide that by three to find the answer.

[tex]\frac{10.5}{3} =3.5[/tex]

That means that d is equal to 3.5

Hope I helped, have a great one! Please mark brainliest!