Q: Solve 30*z - 18*z = -24 for z.

A: -2

Q: Solve 503*v + 501*v + 420 = 983*v for v.

A: -20

Q: Solve 180 = -14*m - 31*m for m.

A: -4

Q: Solve 22 + 3 = -5*g for g.

A:
-5