QUESTION: Math problem: Solve 2*y + 16 = 6*y for y.
ANS: 4
QUESTION: Math problem: Solve 45*x + 57*x = -143*x - 5390 for x.
ANS: -22
QUESTION: Math problem: Solve 390288*f = 390443*f + 2170 for f.
ANS: -14
QUESTION: Math problem: Solve 2*a - 1 = 3 for a.
ANS:
2