Q: Solve 509 - 218 = -25*d - 209 for d.

A: -20

Q: Solve 4*i + 52*i - 336 = 0 for i.

A: 6

Q: Solve 696960 = 4476*x - 68*x + 3512*x for x.

A: 88

Q: Solve -19877 + 82680 + 113205 = -3592*g for g.

A:
-49