The Sum Of Two Numbers Is 39 And Their Difference Is 2
The problem given says that 2 unknown numbers are given, whose sum is equal to 39 and the difference is 2. Let's find the two numbers :When we add the two numbers :
X + Y = 39
The difference of two numbers :
X - Y = 2
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 39 X - Y = 2 2X = 41 |
Let's divide 41 to 2 for the first number "X" .
X/2 = 20.5
First number is 20.5
X + Y = 39
So ;
20.5 + Y = 39
Y = 39 - 20.5
Y = 18.5
Second number is 18.5
Question & Answer
The Sum Of Two Numbers Is 39 And Their Difference Is 2 : 20.5 And 18.5