The Sum Of Two Numbers Is 89 And Their Difference Is 11
The problem given says that 2 unknown numbers are given, whose sum is equal to 89 and the difference is 11. Let's find the two numbers :When we add the two numbers :
X + Y = 89
The difference of two numbers :
X - Y = 11
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 89 X - Y = 11 2X = 100 |
Let's divide 100 to 2 for the first number "X" .
X/2 = 50
First number is 50
X + Y = 89
So ;
50 + Y = 89
Y = 89 - 50
Y = 39
Second number is 39
Question & Answer
The Sum Of Two Numbers Is 89 And Their Difference Is 11 : 50 And 39