Question 13198
First of all, assign variables to the different countries.  I am going to use I for India, U for Ukraine, and S for United States.

You know that I = 8975 because it tells you so.  The next sentence in the problem tells you {{{U = S - 8702}}} and {{{U = 5985 + I}}}.  Since you know I=8975, you can plug it into the second equation to find U:  {{{U = 5985 + 8975}}}, so U = 14,960.  Now that you know U, you can plug it into the first equation to figure out how many are in S:  {{{14960 = S - 8702}}}.  To solve, move 8702 over to the left side of the equation by adding it to get:  {{{23662 = S}}}.  There are 23,662 theaters in the US.