Answer:
To find the value of \( x \) when \( y = 5 \), you can set up a proportion based on the relationship between \( x \) and \( y \) when \( x = 15 \).
\( 3x = 5 \times 15 \)
\( 3x = 75 \)
Divide both sides by 3:
x = \frac{75}{3} \)
x = 25
So when y = 5 ,x = 25