Answer:
[tex]d = - 32[/tex]
Step-by-step explanation:
[tex] - 5 = 0.25d + 3 \\ add \: 5 \: from \: both \: sides \\ \\ - 0.25 = 8 \\ divide \: both \: sides \: by \: - 0.25 \\ \\ d = - 32[/tex]
