The Sum Of Two Numbers Is 25 And Their Difference Is 5
The problem given says that 2 unknown numbers are given, whose sum is equal to 25 and the difference is 5. Let's find the two numbers :When we add the two numbers :
X + Y = 25
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 = 25 X - Y = 5 2X = 30 |
Let's divide 30 to 2 for the first number "X" .
X/2 = 15
First number is 15
X + Y = 25
So ;
15 + Y = 25
Y = 25 - 15
Y = 10
Second number is 10
Question & Answer
The Sum Of Two Numbers Is 25 And Their Difference Is 5 : 15 And 10