Q: Solve 507*a - 1418 = 8215 for a.

A: 19

Q: Solve 4*f + 933 - 937 = 0 for f.

A: 1

Q: Solve 536 = -226*c + 27*c - 658 for c.

A: -6

Q: Solve 135*b - 126*b - 75 = 6 for b.

A:
9