Q: Solve 3*w = -0*w + 2*w for w.

A: 0

Q: Solve -87 = 27*z + 102 for z.

A: -7

Q: Solve 218 = -15*d + 143 for d.

A: -5

Q: Solve -299*n - 768*n + 249*n = 7362 for n.

A:
-9