The Sum Of Two Numbers Is 45 And Their Difference Is 9
The problem given says that 2 unknown numbers are given, whose sum is equal to 45 and the difference is 9. Let's find the two numbers :When we add the two numbers :
X + Y = 45
The difference of two numbers :
X - Y = 9
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 45 X - Y = 9 2X = 54 |
Let's divide 54 to 2 for the first number "X" .
X/2 = 27
First number is 27
X + Y = 45
So ;
27 + Y = 45
Y = 45 - 27
Y = 18
Second number is 18
Question & Answer
The Sum Of Two Numbers Is 45 And Their Difference Is 9 : 27 And 18