The Sum Of Two Numbers Is 19 And Their Difference Is 9
The problem given says that 2 unknown numbers are given, whose sum is equal to 19 and the difference is 9. Let's find the two numbers :When we add the two numbers :
X + Y = 19
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 = 19 X - Y = 9 2X = 28 |
Let's divide 28 to 2 for the first number "X" .
X/2 = 14
First number is 14
X + Y = 19
So ;
14 + Y = 19
Y = 19 - 14
Y = 5
Second number is 5
Question & Answer
The Sum Of Two Numbers Is 19 And Their Difference Is 9 : 14 And 5