Q: Solve 617 = -38*d + 161 for d.

A: -12

Q: Solve -7*x = -3*x - 20*x for x.

A: 0

Q: Solve 483627 + 161727 = -5150*k - 6172*k for k.

A: -57

Q: Solve -10547093*m - 25208 = -10546819*m for m.

A:
-92