Q: What is the solution?
Solve -1503*s + 1545*s + 504 = 0 for s.

A: -12

Q: What is the solution?
Solve -1029 - 3896 = -109*x - 1282 + 826 for x.

A: 41

Q: What is the solution?
Solve 23702 + 6988 = 1532*d - 33654 for d.

A:
42