Q: Solve -4*i = -18*i - 28 for i.

A: -2

Q: Solve 14*c + 102 = -3*c for c.

A: -6

Q: Solve -140*d + 357 = -191*d for d.

A: -7

Q: Solve 31*n = -796 + 455 for n.

A:
-11