Jennifer has $400 more than Brian has. If she were to give Brian 20% of her money, then Brian would have23of the amount of money that Jennifer would then have. How much money does Brian currently have (before exchanging money)?
Let brian's money be x and Jennifer's y. We have: 1) Y - x = 400 2) X + .2y = 2/3 (.8*y) So (3/2)*x + .3y = .8y (3/2)x = .5y Y = 3x Plug that in to 1) 3X - x = 400 X = 200
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