Question: What is the solution?

Solve -575*r = -688*r + 4520 for r.

Answer: 40

Question: What is the solution?

Solve 6*f + 0*f = -24 for f.

Answer: -4

Question: What is the solution?

Solve 27 - 48 = -8*z + 19 for z.

Answer: 5

Question: What is the solution?

Solve 160*t - 3474 - 617 = 69 for t.

Answer:
26