The Sum Of Two Numbers Is 67 And Their Difference Is 7
The problem given says that 2 unknown numbers are given, whose sum is equal to 67 and the difference is 7. Let's find the two numbers :When we add the two numbers :
X + Y = 67
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 = 67 X - Y = 7 2X = 74 |
Let's divide 74 to 2 for the first number "X" .
X/2 = 37
First number is 37
X + Y = 67
So ;
37 + Y = 67
Y = 67 - 37
Y = 30
Second number is 30
Question & Answer
The Sum Of Two Numbers Is 67 And Their Difference Is 7 : 37 And 30