Question: What is the solution?

Solve 321*z + 1391 + 5998 = 1142*z for z.

Answer: 9

Question: What is the solution?

Solve -55*b - 98*b + 34*b = 8*b + 5207 for b.

Answer: -41

Question: What is the solution?

Solve 192*o - 359*o + 297 = -68*o for o.

Answer: 3

Question: What is the solution?

Solve -30*g + 258 = 438 for g.

Answer:
-6