20. Five years hence, the age of Jacob will be three times that of his son. Five years ago, ag was years Jacob's seven times that of his son. What are their present ages?

Form the linear equations for the following problems and find their solution by substitution method. Five years hence, the age of Jacob will be three times that of his son. Five years ago, Jacob's age was seven times that of his son. What are their present ages?

Form the pair of linear equations for the problems and find their solution by substitution method: Five years hence, the age of Jacob will be three times that of his son. Five years ago, Jacob's age was seven times that of his son. What are their present ages?

Form the pair of linear equations for the following problems and find their solution by substitution method. Five years hence, the age of Jacob will be three times that of his son. Five years ago, Jacob's age was seven times that of his son. What are their present ages ?

From the pair of linear equations for the following problems and find their solution by substitution method. Five years hence, the age of Jacob will be three time that of his son. Five years, ago, Jacob's age was seven times that of his son. What are their present ages ?

From the pair of linear equations for the following problems and find their solutions by substitution method. Five years hence the age of Jacob will be three times that of his son. Five years ago , Jacob age was seven times that of his son. What are their present ages.

Form the pair of linear equations for the foIlowing problems find their solution by substitution method: Five years hence, the age of Jacob will be three times that of his on. Five years ago, Jacob's age was seven times that of his son. What are their present ages?

Form the pair of linear equations for the following problems and find their solutions by substitution method.(iv) Five years hence,the age of Jacob will be three times that of his son.Five years ago.Jacob's age was seven times that of his son.What are their present ages.

Five years hence, father’s age will be three times the age of his son. Five years ago, father was seven times as old as his son. Find their present ages.