The Sum Of Two Numbers Is 43 And Their Difference Is 34
The problem given says that 2 unknown numbers are given, whose sum is equal to 43 and the difference is 34. Let's find the two numbers :When we add the two numbers :
X + Y = 43
The difference of two numbers :
X - Y = 34
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 43 X - Y = 34 2X = 77 |
Let's divide 77 to 2 for the first number "X" .
X/2 = 38.5
First number is 38.5
X + Y = 43
So ;
38.5 + Y = 43
Y = 43 - 38.5
Y = 4.5
Second number is 4.5
Question & Answer
The Sum Of Two Numbers Is 43 And Their Difference Is 34 : 38.5 And 4.5