Question

The sum of two numbers is 8 and their difference is 2.What are the two numbers?

Answer 1

Explanation:

Let those two numbers be x and y.Given,x + y = 8, let this be equation 1.x - y = 2, and let this be equation 2.Add equation 1 and equation 2.You get, 2x = 10 since the y term gets cancelled.Hence, x = 5.Substitute the value of x in equation 1.x + y = 85 + y = 8By simplification, y = 3.Therefore the two numbers are 5 and 3.

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