Question:
Solve 61*d - 63*d = 4 for d..

Answer:
-2

Question:
Solve 3*l = -9 + 39 for l..

Answer:
10

Question:
Solve -9*k + 15 = 6*k for k..

Answer:
1

Question:
Solve 0 = 36*m - 1162*m - 83*m + 47151 for m..

Answer:
39