Question:
Solve 13*l = -336 + 167 for l..

Answer:
-13

Question:
Solve -67*c = 22812517 - 22810172 for c..

Answer:
-35

Question:
Solve -9*d - 30 = -27*d + 16*d for d..

Answer:
15

Question:
Solve 95*v - 4318 = -110*v - 49*v for v..

Answer:
17