The Sum Of Two Numbers Is 84 And Their Difference Is 12
The problem given says that 2 unknown numbers are given, whose sum is equal to 84 and the difference is 12. Let's find the two numbers :When we add the two numbers :
X + Y = 84
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 = 84 X - Y = 12 2X = 96 |
Let's divide 96 to 2 for the first number "X" .
X/2 = 48
First number is 48
X + Y = 84
So ;
48 + Y = 84
Y = 84 - 48
Y = 36
Second number is 36
Question & Answer
The Sum Of Two Numbers Is 84 And Their Difference Is 12 : 48 And 36