The Sum Of Two Numbers Is 71 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 71 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 71
The difference of two numbers :
X - Y = 4
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 71 X - Y = 4 2X = 75 |
Let's divide 75 to 2 for the first number "X" .
X/2 = 37.5
First number is 37.5
X + Y = 71
So ;
37.5 + Y = 71
Y = 71 - 37.5
Y = 33.5
Second number is 33.5
Question & Answer
The Sum Of Two Numbers Is 71 And Their Difference Is 4 : 37.5 And 33.5