Answer:
[tex]e=\frac{16}{105}[/tex]
Step-by-step explanation:
[tex]-\frac{1}{3}+5e=\frac{3}{7}=>5e=\frac{3}{7}+\frac{1}{3}\\ \\21*5e=9+7=>105e=16=>e=\frac{16}{105}[/tex]
