Question

Sarah had 28 stickers and put x number of stickers on her binder. Haylee had 40 stickers and put three times as many stickers on her locker as Sarah put on her binder. How many stickers did Sarah put on her binder if they had the same number of stickers left?

Answer 1

Sarah put 6 stickers on her binder.

Step-by-step explanation:

Number of stickers Sarah had = 28

Number of stickers she put on her binder = x.

Number of stickers left with her = 28 - x

Number of stickers Haylee had = 40

Number of stickers she put on her locker = 3x

Number of stickers left with her = 40 - 3x

Both Sarah and Haylee had the same number of stickers left.

28 - x = 40 - 3x

=> 3x - x = 40 - 28

=> 2x = 12

=> x = $\frac{12}{2}$ = 6

Hence, Sarah put 6 stickers on her binder.