The Sum Of Two Numbers Is 12 And Their Difference Is 8
The problem given says that 2 unknown numbers are given, whose sum is equal to 12 and the difference is 8. Let's find the two numbers :When we add the two numbers :
X + Y = 12
The difference of two numbers :
X - Y = 8
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 12 X - Y = 8 2X = 20 |
Let's divide 20 to 2 for the first number "X" .
X/2 = 10
First number is 10
X + Y = 12
So ;
10 + Y = 12
Y = 12 - 10
Y = 2
Second number is 2
Question & Answer
The Sum Of Two Numbers Is 12 And Their Difference Is 8 : 10 And 2