Question:
Solve -j = -0*j for j..

Answer:
0

Question:
Solve -9*v + 15 - 6 = 0 for v..

Answer:
1

Question:
Solve -17 = -60*z + 43*z for z..

Answer:
1

Question:
Solve -4*z - 22 + 42 = 0 for z..

Answer:
5