QUESTION: Math problem: Solve 0 = -r + 68 - 64 for r.
ANS: 4
QUESTION: Math problem: Solve -76 + 106 = 30*v for v.
ANS: 1
QUESTION: Math problem: Solve 120*t + 1437 = -603 for t.
ANS: -17
QUESTION: Math problem: Solve -532 = 27*f - 32 - 176 for f.
ANS:
-12