A positive number is fighting other number if 21 is added to both the number then one of the new number becomes twice the the new number what are the number
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let one of the number be x
second number be 5x
2(x+21)=(5x+21)
=> 2x+42=5x+21
=> 2x−5x=21−42
=> −3x=−21
x=7
One of the number 7
Second number 7×5=35
Answer : 7,35
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