Q: What is the solution?
Solve 2011 = 262*z - 1395 for z.

A: 13

Q: What is the solution?
Solve 0 = -4*b + 38*b - 170 for b.

A: 5

Q: What is the solution?
Solve 1709*r = 57206 - 8516 + 58977 for r.

A:
63