<human>:  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?
<bot>: Define a variable ** Let x be the number of red marbles.
Write an equation ** 5*x=x+24
Simplify ** 4*x=24
Divide by 4 ** x=<<6=6>>6
#### 6