QUESTION: Math problem: Solve 210*a = 123*a + 128*a + 159*a + 15000 for a.
ANS: -75
QUESTION: Math problem: Solve 5*x - 2*x = -0*x for x.
ANS: 0
QUESTION: Math problem: Solve -133 = -57*s + 24*s + 14*s for s.
ANS: 7
QUESTION: Math problem: Solve -8*s - 148 + 68 = 0 for s.
ANS:
-10