The Sum Of Two Numbers Is 31 And Their Difference Is 17
The problem given says that 2 unknown numbers are given, whose sum is equal to 31 and the difference is 17. Let's find the two numbers :When we add the two numbers :
X + Y = 31
The difference of two numbers :
X - Y = 17
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 31 X - Y = 17 2X = 48 |
Let's divide 48 to 2 for the first number "X" .
X/2 = 24
First number is 24
X + Y = 31
So ;
24 + Y = 31
Y = 31 - 24
Y = 7
Second number is 7
Question & Answer
The Sum Of Two Numbers Is 31 And Their Difference Is 17 : 24 And 7