Question:
Solve -7*d - 10*d - 163*d - 2160 = 0 for d..

Answer:
-12

Question:
Solve -6648*z - 188627 - 79566 = 50911 for z..

Answer:
-48

Question:
Solve 244*l = 247*l - 15 for l..

Answer:
5

Question:
Solve 1971 = 88*b + 131*b for b..

Answer:
9