Question: What is the solution?

Solve 0 = 27*q - 94*q - 134 for q.

Answer: -2

Question: What is the solution?

Solve 21*m + 146*m - 13*m = -68*m - 5328 for m.

Answer: -24

Question: What is the solution?

Solve -18 = -19*u + 25*u for u.

Answer: -3

Question: What is the solution?

Solve -42*d + 9989 = -335*d + 3250 for d.

Answer:
-23