Question:
Solve -4278*p + 4387*p = -2616 for p..

Answer:
-24

Question:
Solve 0 = 47*s + 2 - 779 - 633 for s..

Answer:
30

Question:
Solve -48*b = -53*b - 15 for b..

Answer:
-3

Question:
Solve 13366 = -9*u + 13411 for u..

Answer:
5