Q: Solve:
Solve -6*u - 1058 = 28*u + 1326 + 2240 for u.

A: -136

Q: Solve:
Solve -300 + 264 = 18*n for n.

A: -2

Q: Solve:
Solve -12*i = 9 + 39 for i.

A:
-4