The Sum Of Two Numbers Is 66 And Their Difference Is 12
The problem given says that 2 unknown numbers are given, whose sum is equal to 66 and the difference is 12. Let's find the two numbers :When we add the two numbers :
X + Y = 66
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 = 66 X - Y = 12 2X = 78 |
Let's divide 78 to 2 for the first number "X" .
X/2 = 39
First number is 39
X + Y = 66
So ;
39 + Y = 66
Y = 66 - 39
Y = 27
Second number is 27
Question & Answer
The Sum Of Two Numbers Is 66 And Their Difference Is 12 : 39 And 27