The Sum Of Two Numbers Is 42 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 42 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 42
The difference of two numbers :
X - Y = 4
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 42 X - Y = 4 2X = 46 |
Let's divide 46 to 2 for the first number "X" .
X/2 = 23
First number is 23
X + Y = 42
So ;
23 + Y = 42
Y = 42 - 23
Y = 19
Second number is 19
Question & Answer
The Sum Of Two Numbers Is 42 And Their Difference Is 4 : 23 And 19