We will use word Problem , that will involve two variable.
Problem
The sum of two number is 6 and Difference of these two number is 2.Find the Numbers.
There are two statement in the problem ,means it has two part.
So, Now Combining the two statement, and writing it in the form of equation
Let the two number be x and y.
x+y=6------(1)
x-y=2-------(2)
Adding (1) and (2)
→2 x=8
Dividing both side by, 2 we get
→ x=4
Substituting the value of x in equation (1)
→4+y=6
→y=6-4
→y=2
⇒Solution set (x,y)=(4,2)
