The Sum Of Two Numbers Is 36 And Their Difference Is 7
The problem given says that 2 unknown numbers are given, whose sum is equal to 36 and the difference is 7. Let's find the two numbers :When we add the two numbers :
X + Y = 36
The difference of two numbers :
X - Y = 7
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 36 X - Y = 7 2X = 43 |
Let's divide 43 to 2 for the first number "X" .
X/2 = 21.5
First number is 21.5
X + Y = 36
So ;
21.5 + Y = 36
Y = 36 - 21.5
Y = 14.5
Second number is 14.5
Question & Answer
The Sum Of Two Numbers Is 36 And Their Difference Is 7 : 21.5 And 14.5