The Sum Of Two Numbers Is 27 And Their Difference Is 7
The problem given says that 2 unknown numbers are given, whose sum is equal to 27 and the difference is 7. Let's find the two numbers :When we add the two numbers :
X + Y = 27
The difference of two numbers :
X - Y = 7
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 27 X - Y = 7 2X = 34 |
Let's divide 34 to 2 for the first number "X" .
X/2 = 17
First number is 17
X + Y = 27
So ;
17 + Y = 27
Y = 27 - 17
Y = 10
Second number is 10
Question & Answer
The Sum Of Two Numbers Is 27 And Their Difference Is 7 : 17 And 10