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avatar+1218 

If I give my brother $8$ dollars, then we will have the same amount of money.  If instead he gives me $19$ dollars, then I'll have twice as much money as he will have.  How much money does my brother currently have (in dollars)?

 Oct 17, 2024
 #2
avatar+37146 
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y - 8 = b  + 8                y ou give 8 and your b gains 8 to be equal 

      --- or ---                          y-b = 16 

 

y + 19  = 2 ( b-19)          or   y-2b = - 57 

                            subtract top equation from bottom to get     - b = -73    or        b = $ 73  

 Oct 17, 2024

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