Q: Solve:
Solve 4543 = -22*v + 4521 for v.

A: -1

Q: Solve:
Solve 148957*d + 2040 = 149008*d for d.

A: 40

Q: Solve:
Solve -102*l + 25*l = 42*l - 17*l for l.

A:
0