The Sum Of Two Numbers Is 25 And Their Difference Is 9
The problem given says that 2 unknown numbers are given, whose sum is equal to 25 and the difference is 9. Let's find the two numbers :When we add the two numbers :
X + Y = 25
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 = 25 X - Y = 9 2X = 34 |
Let's divide 34 to 2 for the first number "X" .
X/2 = 17
First number is 17
X + Y = 25
So ;
17 + Y = 25
Y = 25 - 17
Y = 8
Second number is 8
Question & Answer
The Sum Of Two Numbers Is 25 And Their Difference Is 9 : 17 And 8