Question:
Solve 79*g = 80*g + 4 for g..

Answer:
-4

Question:
Solve 0 = 123*z + 154 + 215 for z..

Answer:
-3

Question:
Solve 29 = 5*x + 14 for x..

Answer:
3

Question:
Solve -392 = 70*w + 6755 - 2247 for w..

Answer:
-70