7) $$ \frac{2}{7}=\frac{9}{n} $$

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Solve the equation $$ \frac{2}{7}=\frac{9}{n} $$.
Solve the equation by following steps:
- step0: Solve for $$n$$:
  $$\frac{2}{7}=\frac{9}{n}$$
- step1: Find the domain:
  $$\frac{2}{7}=\frac{9}{n},n
eq 0$$
- step2: Swap the sides:
  $$\frac{9}{n}=\frac{2}{7}$$
- step3: Rewrite the expression:
  $$n=\frac{9	imes 7}{2}$$
- step4: Evaluate:
  $$n=\frac{63}{2}$$
- step5: Check if the solution is in the defined range:
  $$n=\frac{63}{2},n
eq 0$$
- step6: Find the intersection:
  $$n=\frac{63}{2}$$
The solution to the equation $$ \frac{2}{7}=\frac{9}{n} $$ is $$ n = \frac{63}{2} $$ or $$ n = 31.5 $$.
$$ n = 31.5 $$

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