The Sum Of Two Numbers Is 69 And Their Difference Is 11
The problem given says that 2 unknown numbers are given, whose sum is equal to 69 and the difference is 11. Let's find the two numbers :When we add the two numbers :
X + Y = 69
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 = 69 X - Y = 11 2X = 80 |
Let's divide 80 to 2 for the first number "X" .
X/2 = 40
First number is 40
X + Y = 69
So ;
40 + Y = 69
Y = 69 - 40
Y = 29
Second number is 29
Question & Answer
The Sum Of Two Numbers Is 69 And Their Difference Is 11 : 40 And 29