Q: Solve 81*y - 879*y = 11970 for y.

A: -15

Q: Solve 71546 = -33*o + 69071 for o.

A: -75

Q: Solve 911*b + 5376 = 692*b - 677*b for b.

A: -6

Q: Solve 0 = -6*y + 5 + 1 for y.

A:
1