The Sum Of Two Numbers Is 75 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 75 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 75
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 = 75 X - Y = 4 2X = 79 |
Let's divide 79 to 2 for the first number "X" .
X/2 = 39.5
First number is 39.5
X + Y = 75
So ;
39.5 + Y = 75
Y = 75 - 39.5
Y = 35.5
Second number is 35.5
Question & Answer
The Sum Of Two Numbers Is 75 And Their Difference Is 4 : 39.5 And 35.5