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avatar+1234 

If I give my brother $5$ dollars, then we will have the same amount of money. If instead he gives me $10$ dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

 Mar 10, 2024
 #1
avatar+129690 
+1

Amt you have at first  =  A

Amt  your brother has at first  = B

 

After you give him $5

A - 5 =  B + 5

A  = B + 10      (1)

 

If he gives you $10

A + 10 =  2(B - 10)

(B + 10) + 10  = 2B - 20

B + 20  = 2B - 20

B = 40

 

He has  $40

You have $50

 

cool cool cool

 Mar 10, 2024
edited by CPhill  Mar 10, 2024

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