The Sum Of Two Numbers Is 39 And Their Difference Is 17
The problem given says that 2 unknown numbers are given, whose sum is equal to 39 and the difference is 17. Let's find the two numbers :When we add the two numbers :
X + Y = 39
The difference of two numbers :
X - Y = 17
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 39 X - Y = 17 2X = 56 |
Let's divide 56 to 2 for the first number "X" .
X/2 = 28
First number is 28
X + Y = 39
So ;
28 + Y = 39
Y = 39 - 28
Y = 11
Second number is 11
Question & Answer
The Sum Of Two Numbers Is 39 And Their Difference Is 17 : 28 And 11