Question

Sum of two numbers is 61 and their difference is 31

find the number ​

Answer 1

$\huge\underline\mathfrak\green{Solution}$

Let the number be x and y

x + y = 61

x - y = 31

Adding both

2x = 92

x = 46

Substitute the value in first equation

y = 61 - 46

y = 15

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