The Sum Of Two Numbers Is 57 And Their Difference Is 14

The problem given says that 2 unknown numbers are given, whose sum is equal to 57 and the difference is 14. Let's find the two numbers :

When we add the two numbers :
X + Y = 57

The difference of two numbers :
X - Y = 14

Solution :

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

X + Y = 57
X - Y = 14

2X = 71

Let's divide 71 to 2 for the first number "X" .

X/2 = 35.5

First number is 35.5

X + Y = 57
So ;
35.5 + Y = 57
Y = 57 - 35.5
Y = 21.5

Second number is 21.5

Question & Answer
The Sum Of Two Numbers Is 57 And Their Difference Is 14 : 35.5 And 21.5