The Sum Of Two Numbers Is 84 And Their Difference Is 18
The problem given says that 2 unknown numbers are given, whose sum is equal to 84 and the difference is 18. Let's find the two numbers :When we add the two numbers :
X + Y = 84
The difference of two numbers :
X - Y = 18
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 84 X - Y = 18 2X = 102 |
Let's divide 102 to 2 for the first number "X" .
X/2 = 51
First number is 51
X + Y = 84
So ;
51 + Y = 84
Y = 84 - 51
Y = 33
Second number is 33
Question & Answer
The Sum Of Two Numbers Is 84 And Their Difference Is 18 : 51 And 33