The number of private middle school in Oakbridge City equals the total number of schools in Riverton City. The number of regional medical school in Clearwater Bay equals 2. The number of public highschool in Oakbridge City equals 3 plus the number of public highschool in Shoreline City. The number of private middle school in Shoreline City equals 3. The number of regional medical school in Riverton City equals 2. The number of private middle school in Riverton City equals the number of regional medical school in Riverton City. The number of private middle school in Clearwater Bay equals the number of regional medical school in Clearwater Bay. The number of regional medical school in Shoreline City equals 4 times the total number of schools in Shoreline City. The number of public highschool in Shoreline City equals the number of regional medical school in Oakbridge City. The number of regional medical school in Oakbridge City equals the total number of schools in Riverton City. The number of culinarian school in Oakbridge City equals 3 plus the number of public highschool in Oakbridge City. The number of public highschool in Clearwater Bay equals the number of private middle school in Oakbridge City. The number of culinarian school in Clearwater Bay equals the number of private middle school in Riverton City.

Question: What is the total number of schools in Oakbridge City?

Solution: Define regional medical school in Riverton City as Y; so Y = 2. Define private middle school in Riverton City as l; so l = Y = 2. Define total number of schools in Riverton City as J; so J = l + Y = 2 + 2 = 4. Define regional medical school in Oakbridge City as O; so O = J = 4. Define public highschool in Shoreline City as L; so L = O = 4. Define public highschool in Oakbridge City as z; P = L = 4; so z = 3 + P = 3 + 4 = 7. Define private middle school in Oakbridge City as x; so x = J = 4. Define culinarian school in Oakbridge City as t; Z = z = 7; so t = 3 + Z = 3 + 7 = 10. Define total number of schools in Oakbridge City as u; p = x + O = 4 + 4 = 8; o = p + t = 8 + 10 = 18; so u = o + z = 18 + 7 = 25. Answer: 25.