Q: Solve:
Solve 885*p + 1238*p - 138750 = 248*p for p.

A: 74

Q: Solve:
Solve 2 = -10*j - 18 for j.

A: -2

Q: Solve:
Solve -18*r + 23*r + 12 + 3 = 0 for r.

A:
-3