Answer:
d = 3
Step-by-step explanation:
[tex]\dfrac{5}{2}=d-\dfrac{2}{4}\qquad\left/\dfrac{2}{4}=\dfrac{2:2}{4:2}=\dfrac{1}{2}\right/\\\\\dfrac{5}{2}=d-\dfrac{1}{2}\qquad\text{add}\ \dfrac{1}{2}\ \text{to both sides}\\\\\dfrac{5}{2}+\dfrac{1}{2}=d-\dfrac{1}{2}+\dfrac{1}{2}\\\\\dfrac{5+1}{2}=d\\\\\dfrac{6}{2}=d\to d=3[/tex]
