Question: What is the solution?

Solve 154*c + 38 = 188*c - 30 for c.

Answer: 2

Question: What is the solution?

Solve 33*v - 38*v - 25 = 0 for v.

Answer: -5

Question: What is the solution?

Solve -2820 = -65*z - 268*z + 177 for z.

Answer: 9

Question: What is the solution?

Solve -6*l + 3 + 11 - 134 = 0 for l.

Answer:
-20