The sum of two numbers is 80. If the lar...

The sum of two numbers is 80. If the larger number exceeds four times the smaller one by 5. Find the numbers.

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Let the required numbers be x and y such that ` x gt y`. Then,
` x + y = 80 " " `… (i) and ` x - 4y = 5" " `… (ii)
Solve (i) and (ii)

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