QUESTION: Math problem: Solve -37*f + 20 = -27*f for f.
ANS: 2
QUESTION: Math problem: Solve -27*w + 483 = -96*w for w.
ANS: -7
QUESTION: Math problem: Solve -4*r - r - 20 = 0 for r.
ANS: -4
QUESTION: Math problem: Solve 53*x + 112*x = -50*x + 215 for x.
ANS:
1