The Sum Of Two Numbers Is 80 And Their Difference Is 12
The problem given says that 2 unknown numbers are given, whose sum is equal to 80 and the difference is 12. Let's find the two numbers :When we add the two numbers :
X + Y = 80
The difference of two numbers :
X - Y = 12
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 80 X - Y = 12 2X = 92 |
Let's divide 92 to 2 for the first number "X" .
X/2 = 46
First number is 46
X + Y = 80
So ;
46 + Y = 80
Y = 80 - 46
Y = 34
Second number is 34
Question & Answer
The Sum Of Two Numbers Is 80 And Their Difference Is 12 : 46 And 34