The Sum Of Two Numbers Is 10 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 10 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 10
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 = 10 X - Y = 4 2X = 14 |
Let's divide 14 to 2 for the first number "X" .
X/2 = 7
First number is 7
X + Y = 10
So ;
7 + Y = 10
Y = 10 - 7
Y = 3
Second number is 3
Question & Answer
The Sum Of Two Numbers Is 10 And Their Difference Is 4 : 7 And 3