QUESTION: Math problem: Solve -6*w = -7*w + 4 for w.
ANS: 4
QUESTION: Math problem: Solve 0 = i - 42 + 48 for i.
ANS: -6
QUESTION: Math problem: Solve 0 = -247*l - 100*l - 71*l - 1672 for l.
ANS: -4
QUESTION: Math problem: Solve -25*d - 1373 = -998 for d.
ANS:
-15