Question: What is the solution?

Solve 48*y - 42*y = 24 for y.

Answer: 4

Question: What is the solution?

Solve 12*r = -60 + 36 for r.

Answer: -2

Question: What is the solution?

Solve -835*v - 15418 = -3272 + 379 for v.

Answer: -15

Question: What is the solution?

Solve -28*i + 107 - 54 + 199 = 0 for i.

Answer:
9