The Sum Of Two Numbers Is 26 And Their Difference Is 15
The problem given says that 2 unknown numbers are given, whose sum is equal to 26 and the difference is 15. Let's find the two numbers :When we add the two numbers :
X + Y = 26
The difference of two numbers :
X - Y = 15
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 26 X - Y = 15 2X = 41 |
Let's divide 41 to 2 for the first number "X" .
X/2 = 20.5
First number is 20.5
X + Y = 26
So ;
20.5 + Y = 26
Y = 26 - 20.5
Y = 5.5
Second number is 5.5
Question & Answer
The Sum Of Two Numbers Is 26 And Their Difference Is 15 : 20.5 And 5.5