QUESTION: Math problem: Solve -2*b + 11 - 21 = 0 for b.
ANS: -5
QUESTION: Math problem: Solve -2*r = 4 - 0 for r.
ANS: -2
QUESTION: Math problem: Solve -6*t + 21*t - 702 = 41*t for t.
ANS: -27
QUESTION: Math problem: Solve 105 = -61*n + 1838 + 1440 + 548 for n.
ANS:
61