The Sum Of Two Numbers Is 76 And Their Difference Is 9
The problem given says that 2 unknown numbers are given, whose sum is equal to 76 and the difference is 9. Let's find the two numbers :When we add the two numbers :
X + Y = 76
The difference of two numbers :
X - Y = 9
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 76 X - Y = 9 2X = 85 |
Let's divide 85 to 2 for the first number "X" .
X/2 = 42.5
First number is 42.5
X + Y = 76
So ;
42.5 + Y = 76
Y = 76 - 42.5
Y = 33.5
Second number is 33.5
Question & Answer
The Sum Of Two Numbers Is 76 And Their Difference Is 9 : 42.5 And 33.5