Question:
Solve -29 = -8*p + 3 for p..

Answer:
4

Question:
Solve 16*y = -4*y - 20 for y..

Answer:
-1

Question:
Solve 0 = 135*s + 69320 - 155887 + 72257 for s..

Answer:
106

Question:
Solve 107*l - 84 - 1667 = 4*l for l..

Answer:
17