The Sum Of Two Numbers Is 12 And Their Difference Is 2
The problem given says that 2 unknown numbers are given, whose sum is equal to 12 and the difference is 2. Let's find the two numbers :When we add the two numbers :
X + Y = 12
The difference of two numbers :
X - Y = 2
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 12 X - Y = 2 2X = 14 |
Let's divide 14 to 2 for the first number "X" .
X/2 = 7
First number is 7
X + Y = 12
So ;
7 + Y = 12
Y = 12 - 7
Y = 5
Second number is 5
Question & Answer
The Sum Of Two Numbers Is 12 And Their Difference Is 2 : 7 And 5