Question:
Solve -119*u - 23 = -216 - 521 for u..

Answer:
6

Question:
Solve -852*v = -3993*v + 220718 - 29117 for v..

Answer:
61

Question:
Solve -42*a + 40*a = -10 for a..

Answer:
5

Question:
Solve 701*w = -1357*w - 509*w - 422*w + 152439 for w..

Answer:
51