Q: Solve 260*x = 262*x - 8 for x.

A: 4

Q: Solve -9*r + 32 = -13 for r.

A: 5

Q: Solve 0 = 4427*z - 4346*z - 891 for z.

A: 11

Q: Solve 10*s + 13 = -7 for s.

A:
-2