The Sum Of Two Numbers Is 79 And Their Difference Is 27
The problem given says that 2 unknown numbers are given, whose sum is equal to 79 and the difference is 27. Let's find the two numbers :When we add the two numbers :
X + Y = 79
The difference of two numbers :
X - Y = 27
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 79 X - Y = 27 2X = 106 |
Let's divide 106 to 2 for the first number "X" .
X/2 = 53
First number is 53
X + Y = 79
So ;
53 + Y = 79
Y = 79 - 53
Y = 26
Second number is 26
Question & Answer
The Sum Of Two Numbers Is 79 And Their Difference Is 27 : 53 And 26