Math,Ratio

the ratio of the number of coins Azam had to the number of coins Eddie had was 3:7.Eddie gave 42 coins to Azam and they ended up having the same number of coins.how many coins did each person have at first? pls sh

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1. orginal:
number of coins for Azam = 3x
number of coins for Eddie = 7x

Eddie gave 42 coins to Azam
Azam now has 3x + 42
Eddie now has 7x - 42

but 7x - 42 = 3x + 42
4x = 84
x = 21

So at first

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2. 👎 1

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