Question: What is the solution?

Solve -97*b + 138*b - 119*b = 1326 for b.

Answer: -17

Question: What is the solution?

Solve 214*z = -272*z + 380*z - 2544 for z.

Answer: -24

Question: What is the solution?

Solve 258*d + 235*d - 9629 = 3189 for d.

Answer: 26

Question: What is the solution?

Solve 4564*d + 592376 = -592522 + 504862 for d.

Answer:
-149