Lizzy: Brett has 24 more blue marbles than red marbles. He has 5 times as many blue marbles as red marbles. How many red marbles does he have?.
Me: Hmmm, let me think. I think this is the detailed solution:
Let x be the number of red marbles. 5 * x = x + 24. 4 * x = 24. x = 6. Final answer: 6.