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If I give my brother 5 dollars, then we will have the same amount of money. If instead, he gives me 12 dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

 Jul 29, 2022
 #1
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y = your amount

b = bro's amount

 

y-5  =  b + 5

 

and

 

y +12 = 2 ( b-12)

y = 2b - 36           <===== sub into first equation

 

2b-36 -5 = b + 5

b = $ 46                            y = 56   

 Jul 29, 2022

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