QUESTION: Math problem: Solve 23*a - 26*a = 18 for a.
ANS: -6
QUESTION: Math problem: Solve 67133 = 2455*y - 28612 for y.
ANS: 39
QUESTION: Math problem: Solve 33*r + 442*r - 72*r - 2591 + 1382 = 0 for r.
ANS: 3
QUESTION: Math problem: Solve -5972 = 168*n - 3788 for n.
ANS:
-13