Q: Solve:
Solve 168 = 3*y + 2*y - 89*y for y.

A: -2

Q: Solve:
Solve 476*z - 21960 = -280*z - 159*z for z.

A: 24

Q: Solve:
Solve 1220 = 8*d + 1188 for d.

A:
4