there are four diferent kinds of animal on the farm. there is a diferent number of each kind of animal. there are 19 more cows than sheep. there are 19 more ducks than hens. there are more hens than cows. Write and solve 2 subtraccion problems and show how many of each animal there might be.
Cows - sheep = 19
Ducks - hens = 19
Unless there is more data, that is all you can do.