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Dylan and Leon had an equal number of bookmarks. After Dylan gave away 45 bookmarks and Leon gave away 60 bookmarks, Dylan had 4 times as many bookmarks as Leon. How many bookmarks did each have at first?

 Apr 25, 2021
 #1
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D  - 45   =  4  [ L - 60 ]

 

But,at first,  D  = L     ...so....

 

D - 45  =  4 [ D  - 60 ] 

 

D  - 45  = 4D -  240

 

240  - 45 =  4D - D

 

195  = 3D

 

195  / 3   =  D   =  65

 

Each started with 65

 

cool cool cool

 Apr 25, 2021

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