The Sum Of Two Numbers Is 12 And Their Difference Is 3
The problem given says that 2 unknown numbers are given, whose sum is equal to 12 and the difference is 3. Let's find the two numbers :When we add the two numbers :
X + Y = 12
The difference of two numbers :
X - Y = 3
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 12 X - Y = 3 2X = 15 |
Let's divide 15 to 2 for the first number "X" .
X/2 = 7.5
First number is 7.5
X + Y = 12
So ;
7.5 + Y = 12
Y = 12 - 7.5
Y = 4.5
Second number is 4.5
Question & Answer
The Sum Of Two Numbers Is 12 And Their Difference Is 3 : 7.5 And 4.5