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प्रश्न
The sum of twice a number and 4 is 80, find the number.
उत्तर
Let the number = x
According to the condition
2x + 4 = 80
⇒ 2x = 80 – 4
⇒ 2x = 76
⇒ x = `76/2 = 38`
Number = 38
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