Question:
Solve -14*k + 2422 = 98*k + 518 for k..

Answer:
17

Question:
Solve 465*u - 1953 = -211*u + 459*u for u..

Answer:
9

Question:
Solve 69*d = 581 - 98 for d..

Answer:
7

Question:
Solve -10859 = 13*y - 16*y + 617*y - 55067 for y..

Answer:
72