Q: Solve:
Solve -195682*t + 195599*t + 3901 = 0 for t.

A: 47

Q: Solve:
Solve 80 = -30*t + 20*t for t.

A: -8

Q: Solve:
Solve -40215*a - 1383999 + 489039 = -10383*a for a.

A:
-30