The Sum Of Two Numbers Is 13 And Their Difference Is 5
The problem given says that 2 unknown numbers are given, whose sum is equal to 13 and the difference is 5. Let's find the two numbers :When we add the two numbers :
X + Y = 13
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 = 13 X - Y = 5 2X = 18 |
Let's divide 18 to 2 for the first number "X" .
X/2 = 9
First number is 9
X + Y = 13
So ;
9 + Y = 13
Y = 13 - 9
Y = 4
Second number is 4
Question & Answer
The Sum Of Two Numbers Is 13 And Their Difference Is 5 : 9 And 4