Q: Solve 70 + 370 = -25*b - 19*b for b.

A: -10

Q: Solve -590*b - 145011 + 149141 = 0 for b.

A: 7

Q: Solve 72 = -r + 81 for r.

A: 9

Q: Solve -24*v + 28 = -10*v for v.

A:
2