Q: Solve 509*d - 65982 = 1591*d + 489*d for d.

A: -42

Q: Solve 148*w + 4624 - 1418 = -2270 for w.

A: -37

Q: Solve 106*t = 92*t + 28 for t.

A: 2

Q: Solve -19302551 = 84*s - 19302215 for s.

A:
-4