Math
posted by Caitlin .
John says to Brenda, "if you give me eight dollars, we will have an equal amount of money." Brenda responds, "but if you give me eight dollars, I will have twice as much money as you." How much money did Brenda and John each have?
Need to show how you did this.

J+8=B8
B+8=2(J8) 
I got this far and still am stuck. How much do they each have?

Solve this system of equations by substitution or elimination.
Substitution would probably be easiest. Simply solve for b in the first equation and substitute that into the second equation. 
I have tried substituting J and B with several different numbers and I can't come up with answer. I have been working on this so long and don't get it. How much money do they each have/

This on is pretty easy, you just have to create 2 equations base on the problem.
X = Jonh
Y = Brenda
X+8 =Y
Y+8 =X
X=Y8
Y+8=2(Y8)
Y+8=2Y16
Y2Y=168
Y=24
Y=24/1
Y=24
X=Y8
X=248
X=16
I also post the answer to your other problem... hope that help you at least a little.
Respond to this Question
Similar Questions

money conversion problem
I have a currency conversion problem that I have found difficult to solve. Suppose that a currency speculator believes that as time goes on the exchange rate is going to fall. On November 1st the speculator converts $1,000 US into … 
math
Brenda spent half her money at a store in the mall. At another store, she spent half her remaining money and $6 more. She had $2 left. How much did Brenda have when she arrived at the mall? 
Math
A man goes into a store and says, " If you give me as much money as I have with me now, I will spend $10.00 in your store." The proprietor agrees, and the man spends the money. He goes into a second store and again says, "If you give … 
math
Web Results For:The ratio of john's money to Peter's money was 4:7 at first. After john spent 1/2 of his money and Peter spent $60. Peter had twice as much money as john. How much money did john have at first? 
maths urgent
1/5 of J's money is equal to 1/3 of S's money. The difference in their amount is 1/2 of A's money. If Adam gives $120 to S, S will have the same amount of money as J. How much do the 3 people have altogether? 
algebra
A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? 
algebra
If Will gives Molly $9 dollars he will have the same amount of money as her. If Molly give Will $9, the ratio of money she has to the money will has will be 1:2. How much money does will have in the beginning? 
math, algebra
If Will gives Molly $9 dollars he will have the same amount of money as her. If Molly give Will $9, the ratio of money she has to the money will has will be 1:2. How much money does will have in the beginning? 
Math
"Molly had (4x + 10) dollars. Ron has (5x + 20) dollars. How much money do they have all together? 
math
David have RM 180 and Maria had RM 55. their aunt give them same amount of money. David have twice as much money as Maria. how much money did their aunt give?