Q: Solve 0 = u + 5 - 4 for u.

A: -1

Q: Solve -5*l + 60 = 55 for l.

A: 1

Q: Solve 0 = -20*f + 89*f + 26 - 1820 for f.

A: 26

Q: Solve 24*j + 45*j + 805 = -92*j for j.

A:
-5