Question:
Solve -20028*x + 141570 = -17850*x for x..

Answer:
65

Question:
Solve 503*n + 11640 = 115*n for n..

Answer:
-30

Question:
Solve 64*k = 47*k + 55*k - 3610 for k..

Answer:
95

Question:
Solve -3*d + 9 = -0*d for d..

Answer:
3