The Sum Of Two Numbers Is 84 And Their Difference Is 5
The problem given says that 2 unknown numbers are given, whose sum is equal to 84 and the difference is 5. Let's find the two numbers :When we add the two numbers :
X + Y = 84
The difference of two numbers :
X - Y = 5
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 84 X - Y = 5 2X = 89 |
Let's divide 89 to 2 for the first number "X" .
X/2 = 44.5
First number is 44.5
X + Y = 84
So ;
44.5 + Y = 84
Y = 84 - 44.5
Y = 39.5
Second number is 39.5
Question & Answer
The Sum Of Two Numbers Is 84 And Their Difference Is 5 : 44.5 And 39.5