The Sum Of Two Numbers Is 22 And Their Difference Is 7
The problem given says that 2 unknown numbers are given, whose sum is equal to 22 and the difference is 7. Let's find the two numbers :When we add the two numbers :
X + Y = 22
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 = 22 X - Y = 7 2X = 29 |
Let's divide 29 to 2 for the first number "X" .
X/2 = 14.5
First number is 14.5
X + Y = 22
So ;
14.5 + Y = 22
Y = 22 - 14.5
Y = 7.5
Second number is 7.5
Question & Answer
The Sum Of Two Numbers Is 22 And Their Difference Is 7 : 14.5 And 7.5