Question:
Solve j = -3*j - 16 for j..

Answer:
-4

Question:
Solve 2242*z + 4731*z = 299839 for z..

Answer:
43

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

Answer:
0

Question:
Solve -160*s - 12 = -162*s for s..

Answer:
6