Q: Solve 506*j - 503*j = -9 for j.

A: -3

Q: Solve 9*i + 27*i - 1130 = 418 for i.

A: 43

Q: Solve 149333 = -31*w + 148868 for w.

A: -15

Q: Solve -187*b = -569 - 179 for b.

A:
4