QUESTION: Math problem: Solve 0 = -90*r - 128 - 232 for r.
ANS: -4
QUESTION: Math problem: Solve 841 + 439 = -128*b for b.
ANS: -10
QUESTION: Math problem: Solve -4*b + 6*b = 0 for b.
ANS: 0
QUESTION: Math problem: Solve 0 = 2145*t + 9210 - 47820 for t.
ANS:
18