The Sum Of Two Numbers Is 75 And Their Difference Is 3

The problem given says that 2 unknown numbers are given, whose sum is equal to 75 and the difference is 3. Let's find the two numbers :

When we add the two numbers :
X + Y = 75

The difference of two numbers :
X - Y = 3

Solution :

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

X + Y = 75
X - Y = 3

2X = 78

Let's divide 78 to 2 for the first number "X" .

X/2 = 39

First number is 39

X + Y = 75
So ;
39 + Y = 75
Y = 75 - 39
Y = 36

Second number is 36

Question & Answer
The Sum Of Two Numbers Is 75 And Their Difference Is 3 : 39 And 36