Q: Solve -o = 2*o for o.

A: 0

Q: Solve 242 - 178 = -16*y for y.

A: -4

Q: Solve 503 = 521*x + 9060 + 3947 for x.

A: -24

Q: Solve 1242*x = -1673*x - 406*x - 63099 for x.

A:
-19