QUESTION: Math problem: Solve 0 = 6*n + 4*n - 30 for n.
ANS: 3
QUESTION: Math problem: Solve -327*t = 226*t + 13825 for t.
ANS: -25
QUESTION: Math problem: Solve 81*r + 104 = 94*r for r.
ANS: 8
QUESTION: Math problem: Solve -3 = -9*r + 42 for r.
ANS:
5