Answer:


Explanation:
If the question is

To solve this, we can first cross-multiply the equation. This gives us:


Then, we can divide both sides of the equation by y and 21 to get
. This gives us:


If the question is

To solve this, we can first cross-multiply the equation. This gives us:


Then, we can divide both sides of the equation by y and 25 to get
. This gives us:
