The Sum Of Two Numbers Is 56 And Their Difference Is 18

The problem given says that 2 unknown numbers are given, whose sum is equal to 56 and the difference is 18. Let's find the two numbers :

When we add the two numbers :
X + Y = 56

The difference of two numbers :
X - Y = 18

Solution :

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

X + Y = 56
X - Y = 18

2X = 74

Let's divide 74 to 2 for the first number "X" .

X/2 = 37

First number is 37

X + Y = 56
So ;
37 + Y = 56
Y = 56 - 37
Y = 19

Second number is 19

Question & Answer
The Sum Of Two Numbers Is 56 And Their Difference Is 18 : 37 And 19