The Sum Of Two Numbers Is 36 And Their Difference Is 9

The problem given says that 2 unknown numbers are given, whose sum is equal to 36 and the difference is 9. Let's find the two numbers :

When we add the two numbers :
X + Y = 36

The difference of two numbers :
X - Y = 9

Solution :

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

X + Y = 36
X - Y = 9

2X = 45

Let's divide 45 to 2 for the first number "X" .

X/2 = 22.5

First number is 22.5

X + Y = 36
So ;
22.5 + Y = 36
Y = 36 - 22.5
Y = 13.5

Second number is 13.5

Question & Answer
The Sum Of Two Numbers Is 36 And Their Difference Is 9 : 22.5 And 13.5

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