QUESTION: Math problem: Solve -61875*r + 61883*r = 504 for r.
ANS: 63
QUESTION: Math problem: Solve 27 + 21 = 12*d for d.
ANS: 4
QUESTION: Math problem: Solve 39418*g - 116 = 39389*g for g.
ANS: 4
QUESTION: Math problem: Solve -a - 42 = -47 for a.
ANS:
5