The Sum Of Two Numbers Is 45 And Their Difference Is 5

The problem given says that 2 unknown numbers are given, whose sum is equal to 45 and the difference is 5. Let's find the two numbers :

When we add the two numbers :
X + Y = 45

The difference of two numbers :
X - Y = 5

Solution :

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

X + Y = 45
X - Y = 5

2X = 50

Let's divide 50 to 2 for the first number "X" .

X/2 = 25

First number is 25

X + Y = 45
So ;
25 + Y = 45
Y = 45 - 25
Y = 20

Second number is 20

Question & Answer
The Sum Of Two Numbers Is 45 And Their Difference Is 5 : 25 And 20