The Sum Of Two Numbers Is 80 And Their Difference Is 28
The problem given says that 2 unknown numbers are given, whose sum is equal to 80 and the difference is 28. Let's find the two numbers :When we add the two numbers :
X + Y = 80
The difference of two numbers :
X - Y = 28
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 80 X - Y = 28 2X = 108 |
Let's divide 108 to 2 for the first number "X" .
X/2 = 54
First number is 54
X + Y = 80
So ;
54 + Y = 80
Y = 80 - 54
Y = 26
Second number is 26
Question & Answer
The Sum Of Two Numbers Is 80 And Their Difference Is 28 : 54 And 26