Question:
Solve 14 = -10*d - 15 - 21 for d..

Answer:
-5

Question:
Solve 26 = -2*k + 36 for k..

Answer:
5

Question:
Solve 26420 = 4817*b - 130376 - 373074 for b..

Answer:
110

Question:
Solve 85*l = -27*l - 336 for l..

Answer:
-3