QUESTION: Math problem: Solve -921 + 601 = 43*d + 1959 for d.
ANS: -53
QUESTION: Math problem: Solve -522 = 218*o + 2966 for o.
ANS: -16
QUESTION: Math problem: Solve -111*s - 40 = -103*s for s.
ANS: -5
QUESTION: Math problem: Solve 9*x = 4 - 67 for x.
ANS:
-7