Q: Solve:
Solve 0 = -36*r - 279 - 248 + 527 for r.

A: 0

Q: Solve:
Solve 328*g - 75*g - 206 = 1565 for g.

A: 7

Q: Solve:
Solve -105*d - 50*d + 15778 = 188*d for d.

A:
46