Answer:
0.02x + 0.28y = 0.5 is the required answer.
Explanation:
Given:

To Find :
Expression when it is divided by 200.
Solution:

After Dividing both the side by 200 we get

Which is the required Expression after Dividing by 200.
∴ 0.02x + 0.28y = 0.5 is the required answer.