The Sum Of Two Numbers Is 69 And Their Difference Is 8
The problem given says that 2 unknown numbers are given, whose sum is equal to 69 and the difference is 8. Let's find the two numbers :When we add the two numbers :
X + Y = 69
The difference of two numbers :
X - Y = 8
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 69 X - Y = 8 2X = 77 |
Let's divide 77 to 2 for the first number "X" .
X/2 = 38.5
First number is 38.5
X + Y = 69
So ;
38.5 + Y = 69
Y = 69 - 38.5
Y = 30.5
Second number is 30.5
Question & Answer
The Sum Of Two Numbers Is 69 And Their Difference Is 8 : 38.5 And 30.5