The Sum Of Two Numbers Is 75 And Their Difference Is 31
The problem given says that 2 unknown numbers are given, whose sum is equal to 75 and the difference is 31. Let's find the two numbers :When we add the two numbers :
X + Y = 75
The difference of two numbers :
X - Y = 31
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 75 X - Y = 31 2X = 106 |
Let's divide 106 to 2 for the first number "X" .
X/2 = 53
First number is 53
X + Y = 75
So ;
53 + Y = 75
Y = 75 - 53
Y = 22
Second number is 22
Question & Answer
The Sum Of Two Numbers Is 75 And Their Difference Is 31 : 53 And 22