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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 $10$ dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

 Jan 13, 2024

Best Answer 

 #1
avatar+36919 
+1

y = your money 

b = brother's money 

 

y - 5  = b + 5            <===== given    this is    y = b + 10  

y+10 = 2 ( b-10)       <====  given      sub in   'y = b+10 '

b+10   + 10   = 2b - 20    Solve for 'b' by adding twent to both sides and subtracting 'b' from both sides 

$ 30 = b                         ( and you have $ 40) 

 Jan 13, 2024
 #1
avatar+36919 
+1
Best Answer

y = your money 

b = brother's money 

 

y - 5  = b + 5            <===== given    this is    y = b + 10  

y+10 = 2 ( b-10)       <====  given      sub in   'y = b+10 '

b+10   + 10   = 2b - 20    Solve for 'b' by adding twent to both sides and subtracting 'b' from both sides 

$ 30 = b                         ( and you have $ 40) 

ElectricPavlov Jan 13, 2024

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