The Sum Of Two Numbers Is 64 And Their Difference Is 39
The problem given says that 2 unknown numbers are given, whose sum is equal to 64 and the difference is 39. Let's find the two numbers :When we add the two numbers :
X + Y = 64
The difference of two numbers :
X - Y = 39
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 64 X - Y = 39 2X = 103 |
Let's divide 103 to 2 for the first number "X" .
X/2 = 51.5
First number is 51.5
X + Y = 64
So ;
51.5 + Y = 64
Y = 64 - 51.5
Y = 12.5
Second number is 12.5
Question & Answer
The Sum Of Two Numbers Is 64 And Their Difference Is 39 : 51.5 And 12.5