The Sum Of Two Numbers Is 41 And Their Difference Is 21

The problem given says that 2 unknown numbers are given, whose sum is equal to 41 and the difference is 21. Let's find the two numbers :

When we add the two numbers :
X + Y = 41

The difference of two numbers :
X - Y = 21

Solution :

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

X + Y = 41
X - Y = 21

2X = 62

Let's divide 62 to 2 for the first number "X" .

X/2 = 31

First number is 31

X + Y = 41
So ;
31 + Y = 41
Y = 41 - 31
Y = 10

Second number is 10

Question & Answer
The Sum Of Two Numbers Is 41 And Their Difference Is 21 : 31 And 10