Q: Solve -143*v - 142 = -319 - 538 for v.

A: 5

Q: Solve -1062 = 143*t - 25*t for t.

A: -9

Q: Solve -17*s + 2*s + 60 = 0 for s.

A: 4

Q: Solve 11251*r - 11271*r = -40 for r.

A:
2