QUESTION: Math problem: Solve 514*l + 497*l - 640 = 1043*l for l.
ANS: -20
QUESTION: Math problem: Solve -25*x + 12 = -22*x for x.
ANS: 4
QUESTION: Math problem: Solve -394*k + 1291 - 780 = -3823 for k.
ANS: 11
QUESTION: Math problem: Solve -12922 = -1257*b + 103*b - 9755 - 44711 for b.
ANS:
-36