\(5 + 3 = 4d\)
First, add '5 + 3' to get '8'.
\(8 = 4d\)
Second, divide both sides by '4', leaving the 'd' by itself.
\(\frac{8}{4} = d\)
Third, (8 ÷ 4), simplify the fraction to '2'.
\(2 = d\)
Fourth, you can switch your sides.
\(d = 2\)
Answer: \(\fbox {d = 2}\)