QUESTION: Math problem: Solve -11*b = -6*b + 15 for b.
ANS: -3
QUESTION: Math problem: Solve -30 = 11*b + 14 for b.
ANS: -4
QUESTION: Math problem: Solve 6*l = 116 - 128 for l.
ANS: -2
QUESTION: Math problem: Solve -72*l + 19*l = 7*l + 300 for l.
ANS:
-5