The Sum Of Two Numbers Is 80 And Their Difference Is 38
The problem given says that 2 unknown numbers are given, whose sum is equal to 80 and the difference is 38. Let's find the two numbers :When we add the two numbers :
X + Y = 80
The difference of two numbers :
X - Y = 38
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 80 X - Y = 38 2X = 118 |
Let's divide 118 to 2 for the first number "X" .
X/2 = 59
First number is 59
X + Y = 80
So ;
59 + Y = 80
Y = 80 - 59
Y = 21
Second number is 21
Question & Answer
The Sum Of Two Numbers Is 80 And Their Difference Is 38 : 59 And 21