15/x=7/14

To solve the equation \( \frac{15}{x} = \frac{7}{14} \), we can start by simplifying the fraction on the right side.

Since \( \frac{7}{14} = \frac{1}{2} \), the equation simplifies to:

\[ \frac{15}{x} = \frac{1}{2} \]

Next, we can cross-multiply to solve for \( x \):

\[ 15 \cdot 2 = 1 \cdot x \]

This simplifies to:

\[ 30 = x \]

Thus, the solution is:

\[ x = 30 \]