By adding 7 twice a number we obtain 49 find number
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Let the number be a
According to question,
2a + 7 = 49
=> 2a = 49 - 7
=> 2a = 42
=> a = 42 / 2
=> a = 21
Required number = 21
According to question,
2a + 7 = 49
=> 2a = 49 - 7
=> 2a = 42
=> a = 42 / 2
=> a = 21
Required number = 21
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