The Sum Of Two Numbers Is 50 And Their Difference Is 13

The problem given says that 2 unknown numbers are given, whose sum is equal to 50 and the difference is 13. Let's find the two numbers :

When we add the two numbers :
X + Y = 50

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 = 50
X - Y = 13

2X = 63

Let's divide 63 to 2 for the first number "X" .

X/2 = 31.5

First number is 31.5

X + Y = 50
So ;
31.5 + Y = 50
Y = 50 - 31.5
Y = 18.5

Second number is 18.5

Question & Answer
The Sum Of Two Numbers Is 50 And Their Difference Is 13 : 31.5 And 18.5