The Sum Of Two Numbers Is 39 And Their Difference Is 8
The problem given says that 2 unknown numbers are given, whose sum is equal to 39 and the difference is 8. Let's find the two numbers :When we add the two numbers :
X + Y = 39
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 = 39 X - Y = 8 2X = 47 |
Let's divide 47 to 2 for the first number "X" .
X/2 = 23.5
First number is 23.5
X + Y = 39
So ;
23.5 + Y = 39
Y = 39 - 23.5
Y = 15.5
Second number is 15.5
Question & Answer
The Sum Of Two Numbers Is 39 And Their Difference Is 8 : 23.5 And 15.5