Respuesta :

Answer:

d = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Given

= 16(d + 1) = - 20 ← distribute parenthesis on left side

- 16d - 16 = - 20 ( add 16 to both sides )

- 16d = - 4 ( divide both sides by - 16 )

d = [tex]\frac{-4}{-16}[/tex] = [tex]\frac{1}{4}[/tex]