The Sum Of Two Numbers Is 72 And Their Difference Is 8
The problem given says that 2 unknown numbers are given, whose sum is equal to 72 and the difference is 8. Let's find the two numbers :When we add the two numbers :
X + Y = 72
The difference of two numbers :
X - Y = 8
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 72 X - Y = 8 2X = 80 |
Let's divide 80 to 2 for the first number "X" .
X/2 = 40
First number is 40
X + Y = 72
So ;
40 + Y = 72
Y = 72 - 40
Y = 32
Second number is 32
Question & Answer
The Sum Of Two Numbers Is 72 And Their Difference Is 8 : 40 And 32