Answer:
n=[tex]\frac{49}{10}[/tex]
Step-by-step explanation:
[tex]3\frac{1}{2}= n- 1\frac{2}{5}\\[/tex]
After moving [tex]1\frac{2}{5}[/tex] to the other side of the equal sign you get:
[tex]3\frac{1}{2}+1\frac{2}{5} =n[/tex]
[tex]n=3\frac{1}{2}+1\frac{2}{5}\\\\ n=\frac{7}{2}+\frac{7}{5}\\ n=\frac{35}{10}+\frac{14}{10}\\ n=\frac{49}{10}[/tex]
