The Sum Of Two Numbers Is 40 And Their Difference Is 12
The problem given says that 2 unknown numbers are given, whose sum is equal to 40 and the difference is 12. Let's find the two numbers :When we add the two numbers :
X + Y = 40
The difference of two numbers :
X - Y = 12
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 40 X - Y = 12 2X = 52 |
Let's divide 52 to 2 for the first number "X" .
X/2 = 26
First number is 26
X + Y = 40
So ;
26 + Y = 40
Y = 40 - 26
Y = 14
Second number is 14
Question & Answer
The Sum Of Two Numbers Is 40 And Their Difference Is 12 : 26 And 14