1/2n = 1/7 × 14/1
[tex] \frac{1}{2}x = \frac{1}{7} [/tex]

Answer:
N = 4
Step-by-step explanation:
Switch sides
[tex]\bold{\frac{n}{14}=\frac{\frac{1}{7}}{\frac{1}{2}}}[/tex]
Divide fractions: [tex]\bold{\frac{\frac{a}{b}}{\frac{c}{d}}=\frac{a\cdot \:d}{b\cdot \:c}}[/tex]
[tex]\bold{\frac{n}{14}=\frac{1\cdot \:2}{7\cdot \:1}}[/tex]
Refine
[tex]\bold{\frac{n}{14}=\frac{2}{7}}[/tex]
Multiply both sides by 14
[tex]\bold{\frac{14n}{14}=\frac{2\cdot \:14}{7}}[/tex]
Simplify
n = 4