QUESTION: Math problem: Solve -65 - 26 = 13*u for u.
ANS: -7
QUESTION: Math problem: Solve -40 - 87 = 16*w + 160 + 33 for w.
ANS: -20
QUESTION: Math problem: Solve -18*o + 210 = 14*o - 62*o for o.
ANS: -7
QUESTION: Math problem: Solve 398268 = -8313*d - 779*d - 1672*d for d.
ANS:
-37