The Sum Of Two Numbers Is 79 And Their Difference Is 17
The problem given says that 2 unknown numbers are given, whose sum is equal to 79 and the difference is 17. Let's find the two numbers :When we add the two numbers :
X + Y = 79
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 = 79 X - Y = 17 2X = 96 |
Let's divide 96 to 2 for the first number "X" .
X/2 = 48
First number is 48
X + Y = 79
So ;
48 + Y = 79
Y = 79 - 48
Y = 31
Second number is 31
Question & Answer
The Sum Of Two Numbers Is 79 And Their Difference Is 17 : 48 And 31