Question

The sum of two numbers is 47 and the difference is 23 . What are the numbers?

Answer 1

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Let the numbers be x and y,

now, according to question :

• x + y = 47

• x - y = 23

by adding both equations we get,

• x + y + x - y = 47 + 23

• 2x = 70

• x = 35

now, let's plug the value of x in first equation to evaluate the value of y :

• x + y = 47

• 35 + y = 47

• y = 47 - 35

• y = 12

therefore, the required numbers are :

• 35 and 12