The Sum Of Two Numbers Is 10 And Their Difference Is 1

The problem given says that 2 unknown numbers are given, whose sum is equal to 10 and the difference is 1. Let's find the two numbers :

When we add the two numbers :
X + Y = 10

The difference of two numbers :
X - Y = 1

Solution :

If we add the two equations eachother , then we can find the first number.

X + Y = 10
X - Y = 1

2X = 11

Let's divide 11 to 2 for the first number "X" .

X/2 = 5.5

First number is 5.5

X + Y = 10
So ;
5.5 + Y = 10
Y = 10 - 5.5
Y = 4.5

Second number is 4.5

Question & Answer
The Sum Of Two Numbers Is 10 And Their Difference Is 1 : 5.5 And 4.5