Q: Solve 292*r - 445*r + 454*r - 8127 = 0 for r.

A: 27

Q: Solve 44*k = 60*k + 16 for k.

A: -1

Q: Solve 7*y - 56*y = -2980 + 2392 for y.

A: 12

Q: Solve -6639 = -664*h - 1327 for h.

A:
8