The Sum Of Two Numbers Is 65 And Their Difference Is 39

The problem given says that 2 unknown numbers are given, whose sum is equal to 65 and the difference is 39. Let's find the two numbers :

When we add the two numbers :
X + Y = 65

The difference of two numbers :
X - Y = 39

Solution :

If we add the two equations eachother , then we can find the first number.

X + Y = 65
X - Y = 39

2X = 104

Let's divide 104 to 2 for the first number "X" .

X/2 = 52

First number is 52

X + Y = 65
So ;
52 + Y = 65
Y = 65 - 52
Y = 13

Second number is 13

Question & Answer
The Sum Of Two Numbers Is 65 And Their Difference Is 39 : 52 And 13