If there are initially 1,000 workers in country X and 500 workers in country Y, then we should expect: a. net migration from country X to country Y
b. net migration from country Y to country X
c. There will be no migration of workers
d. A migration pattern cannot be determined from the information

the question is incomplete, as you copied it the answer would be:

d. A migration pattern cannot be determined from the information

But I looked for similar questions and found the following (see attached image):

Under the circumstances shown by the graphs, then the answer would be:

Workers will move from country Y to country X until wages in country X and Y are equal.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link :

x=3

step-by-step explanation:

this is really simple i saw that there was only one term (5x) and thought if that was 15 what would i have to multiply everything else to get it there? well if 5x became 15 then x would have to be 3 so plug the 3 in the x for the other equations and you get 15 for the other ones. so there you go. : )