Question:
Solve 130684*z = 65351*z + 65254*z - 6715 for z..

Answer:
-85

Question:
Solve -147437 = 1466*p + 577*p + 99766 for p..

Answer:
-121

Question:
Solve 15*g - 225 = -10*g for g..

Answer:
9

Question:
Solve -7*c + 0*c - 21 = 0 for c..

Answer:
-3