The Sum Of Two Numbers Is 47 And Their Difference Is 13

The problem given says that 2 unknown numbers are given, whose sum is equal to 47 and the difference is 13. Let's find the two numbers :

When we add the two numbers :
X + Y = 47

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 = 47
X - Y = 13

2X = 60

Let's divide 60 to 2 for the first number "X" .

X/2 = 30

First number is 30

X + Y = 47
So ;
30 + Y = 47
Y = 47 - 30
Y = 17

Second number is 17

Question & Answer
The Sum Of Two Numbers Is 47 And Their Difference Is 13 : 30 And 17