The Sum Of Two Numbers Is 84 And Their Difference Is 38
The problem given says that 2 unknown numbers are given, whose sum is equal to 84 and the difference is 38. Let's find the two numbers :When we add the two numbers :
X + Y = 84
The difference of two numbers :
X - Y = 38
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 84 X - Y = 38 2X = 122 |
Let's divide 122 to 2 for the first number "X" .
X/2 = 61
First number is 61
X + Y = 84
So ;
61 + Y = 84
Y = 84 - 61
Y = 23
Second number is 23
Question & Answer
The Sum Of Two Numbers Is 84 And Their Difference Is 38 : 61 And 23