QUESTION: Math problem: Solve -16*r + 42 = -22*r for r.
ANS: -7
QUESTION: Math problem: Solve 38 - 141 = -64*s + 601 for s.
ANS: 11
QUESTION: Math problem: Solve -14*v = 119 - 7 for v.
ANS: -8
QUESTION: Math problem: Solve 877*v + 193344 = 4525*v for v.
ANS:
53