Q: Solve 768 = -465*r - 6672 for r.

A: -16

Q: Solve d - 3*d - 5898 = -5880 for d.

A: -9

Q: Solve -8 = 105*y - 103*y for y.

A: -4

Q: Solve 31*s + 4*s = -175 for s.

A:
-5