Question:
Solve -4*n + 269 = 261 for n..

Answer:
2

Question:
Solve -18*d + 26 = 116 for d..

Answer:
-5

Question:
Solve -162 = -4309*g + 4291*g for g..

Answer:
9

Question:
Solve -664 = -45*u - 283 + 429 for u..

Answer:
18