Q: Solve -691 = 7*r - 705 for r.

A: 2

Q: Solve 153*j - 487 - 3338 = 0 for j.

A: 25

Q: Solve -66*z = -294056 + 293396 for z.

A: 10

Q: Solve 2*x - 12 + 4 = 0 for x.

A:
4