Q: Solve -18*u = -88*u + 1072 + 258 for u.

A: 19

Q: Solve 194 - 10 = -13990*f + 13986*f for f.

A: -46

Q: Solve 63*k - 200 = 111*k - 68*k for k.

A: 10

Q: Solve 0 = -2*p + 2 - 6 for p.

A:
-2