Q: Solve 196*t - 97*t - 990 = 0 for t.

A: 10

Q: Solve 39*c - 33*c + 6 = 0 for c.

A: -1

Q: Solve -343*f = 375*f + 109*f + 9097 for f.

A: -11

Q: Solve -52*d - 290 = -110*d for d.

A:
5