Answer :
Answer:
Suppose pen cost is x.
The cost of a note book is 2x.
The total cost is 3x or y.
We can say that:-
[tex]x+2x=3x[/tex]
Or to produce a linear equation ,we can say:-
[tex]x+2x=y[/tex]
Where y is the total cost//3x.
Answer:
Suppose pen cost is x.
The cost of a note book is 2x.
The total cost is 3x or y.
We can say that:-
[tex]x+2x=3x[/tex]
Or to produce a linear equation ,we can say:-
[tex]x+2x=y[/tex]
Where y is the total cost//3x.