The Sum Of Two Numbers Is 29 And Their Difference Is 9

The problem given says that 2 unknown numbers are given, whose sum is equal to 29 and the difference is 9. Let's find the two numbers :

When we add the two numbers :
X + Y = 29

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 = 29
X - Y = 9

2X = 38

Let's divide 38 to 2 for the first number "X" .

X/2 = 19

First number is 19

X + Y = 29
So ;
19 + Y = 29
Y = 29 - 19
Y = 10

Second number is 10

Question & Answer
The Sum Of Two Numbers Is 29 And Their Difference Is 9 : 19 And 10