Q: Solve -18*k + 78 = 79*k + 466 for k.

A: -4

Q: Solve 26*v - 70 - 298 = -30 for v.

A: 13

Q: Solve -15 + 30 = -3*x for x.

A: -5

Q: Solve 405 = -3*o + 414 for o.

A:
3