Posted by Caitlin on .
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.

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

Math 
Michael,
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. 
Math 
Caitlin,
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/

Math 
Mary,
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.