The Sum Of Two Numbers Is 38 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 38 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 38
The difference of two numbers :
X - Y = 4
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 38 X - Y = 4 2X = 42 |
Let's divide 42 to 2 for the first number "X" .
X/2 = 21
First number is 21
X + Y = 38
So ;
21 + Y = 38
Y = 38 - 21
Y = 17
Second number is 17
Question & Answer
The Sum Of Two Numbers Is 38 And Their Difference Is 4 : 21 And 17