The Sum Of Two Numbers Is 72 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 72 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 72
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 = 72 X - Y = 4 2X = 76 |
Let's divide 76 to 2 for the first number "X" .
X/2 = 38
First number is 38
X + Y = 72
So ;
38 + Y = 72
Y = 72 - 38
Y = 34
Second number is 34
Question & Answer
The Sum Of Two Numbers Is 72 And Their Difference Is 4 : 38 And 34