Q: Solve 48*v - 7 = 47*v for v.

A: 7

Q: Solve 181 = -2*b + 187 for b.

A: 3

Q: Solve -9*r + 552 = 4*r + 33*r for r.

A: 12

Q: Solve 371 = 41*l - 212*l - 1852 for l.

A:
-13