Question:
Solve -619*w = -666*w - 517 for w..

Answer:
-11

Question:
Solve 1365*i = 31656 + 14754 for i..

Answer:
34

Question:
Solve 0 = -8*r + 4*r - 8*r for r..

Answer:
0

Question:
Solve -94 - 419 = -48*u + 254 + 433 for u..

Answer:
25