Type the correct answer in the box. Use numerals instead of WUI Find the solution set.
The solution set for 79 - 28 = 0 is {
(Separate the solutions with a comma)

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.