The Sum Of Two Numbers Is 53 And Their Difference Is 13

The problem given says that 2 unknown numbers are given, whose sum is equal to 53 and the difference is 13. Let's find the two numbers :

When we add the two numbers :
X + Y = 53

The difference of two numbers :
X - Y = 13

Solution :

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

X + Y = 53
X - Y = 13

2X = 66

Let's divide 66 to 2 for the first number "X" .

X/2 = 33

First number is 33

X + Y = 53
So ;
33 + Y = 53
Y = 53 - 33
Y = 20

Second number is 20

Question & Answer
The Sum Of Two Numbers Is 53 And Their Difference Is 13 : 33 And 20