The Sum Of Two Numbers Is 89 And Their Difference Is 12
The problem given says that 2 unknown numbers are given, whose sum is equal to 89 and the difference is 12. Let's find the two numbers :When we add the two numbers :
X + Y = 89
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 = 89 X - Y = 12 2X = 101 |
Let's divide 101 to 2 for the first number "X" .
X/2 = 50.5
First number is 50.5
X + Y = 89
So ;
50.5 + Y = 89
Y = 89 - 50.5
Y = 38.5
Second number is 38.5
Question & Answer
The Sum Of Two Numbers Is 89 And Their Difference Is 12 : 50.5 And 38.5