7/15=х/135

To solve the equation \( \frac{7}{15} = \frac{x}{135} \), you can use cross-multiplication.

Cross-multiplying gives:

\[ 7 \cdot 135 = 15 \cdot x \]

Calculating \( 7 \cdot 135 \):

\[ 7 \cdot 135 = 945 \]

So now the equation is:

\[ 945 = 15x \]

To solve for \( x \), divide both sides by 15:

\[ x = \frac{945}{15} \]

Calculating \( \frac{945}{15} \):

\[ x = 63 \]

Therefore, the value of \( x \) is \( 63 \).