Question:
Solve 0 = 155*y - 99*y - 89*y + 429 for y..

Answer:
13

Question:
Solve -163*g = -169*g + 6 for g..

Answer:
1

Question:
Solve 410*o - 400*o = 30 for o..

Answer:
3

Question:
Solve -1114*z - 3746 - 2124 = -1414 for z..

Answer:
-4