Question:
Solve -238 = -63*j + 7*j - 14 for j..

Answer:
4

Question:
Solve s = -7*s - 40 for s..

Answer:
-5

Question:
Solve -13601 = 1631*t - 3815 for t..

Answer:
-6

Question:
Solve 52 = -2*p + 15*p for p..

Answer:
4