Question:
Solve -k - 75 = 24*k for k..

Answer:
-3

Question:
Solve 6*x = 2*x + 2*x + 18 for x..

Answer:
9

Question:
Solve -15*d = 20*d + 74*d + 1308 for d..

Answer:
-12

Question:
Solve -232 - 5 = -92*b + 39 for b..

Answer:
3