The Sum Of Two Numbers Is 86 And Their Difference Is 5
The problem given says that 2 unknown numbers are given, whose sum is equal to 86 and the difference is 5. Let's find the two numbers :When we add the two numbers :
X + Y = 86
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 = 86 X - Y = 5 2X = 91 |
Let's divide 91 to 2 for the first number "X" .
X/2 = 45.5
First number is 45.5
X + Y = 86
So ;
45.5 + Y = 86
Y = 86 - 45.5
Y = 40.5
Second number is 40.5
Question & Answer
The Sum Of Two Numbers Is 86 And Their Difference Is 5 : 45.5 And 40.5