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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 25 dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

 Jul 21, 2023
 #2
avatar+36915 
+1

y = your money

b = brother money

y-5 = b+5     <======given

2(b-25) = y+25     <======given                    Sollve the sytem of equations....looking for b

Re-arange the first equation 

    y = b+10       sub this into the second equation.....

    2(b-25) = ( b+10) + 25 

     b = 10 + 25 + 50 = 85 dollars                      ( and you have 95) 

 Jul 21, 2023
 #3
avatar+2 
0

You have Dollar 15 and Your Brother have Dollar 20

 

If 5 give to you 

 

15 + 5 = 20 = 20

 

If 25 give to you 

 

15 + 25 = 40 = 2*20

 

TikMate

 Jul 21, 2023
edited by arunganta30  Jul 21, 2023
 #4
avatar+36915 
0

Not quite arunganta30

 

If Brother has 20      and you have 15 ....   

             when you give him 5      he has 25   and you have 10 ....not the same amount......do you see? 

ElectricPavlov  Jul 21, 2023

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