Q: Solve:
Solve 700 = 63*u - 138*u + 100 for u.

A: -8

Q: Solve:
Solve -141*c - 42*c + 1281 = 0 for c.

A: 7

Q: Solve:
Solve -26*t - 50*t = 608 for t.

A:
-8