QUESTION: Math problem: Solve -20*k + 15 = -5 for k.
ANS: 1
QUESTION: Math problem: Solve -60*h = -31*h + 348 for h.
ANS: -12
QUESTION: Math problem: Solve 10*r = -5 + 25 for r.
ANS: 2
QUESTION: Math problem: Solve -10*f + 957 = -10*f - 29*f for f.
ANS:
-33