Ravish tell his daughter aarushi ,seven years ago,i was as old as seven times you were then .Also three years from now i shall be three times as old as you will be. If present ages of aarushi and ravish are x and y years respectively .represent this situation algebraically and graphically.

Explanation

As given,
the age of arushi is `=x years`
age of ravish is`=y` years
according to question,
`(y-7)=7(x-7)`
`7x-y=42`
according to question,
`(y+3)=3(x+3)`
`y-3x=6`