Question

Express the following statement as a linear equation in two variables by taking present ages (in years)of father and son as x and y respectively. Age of father 5 years ago was two years more than 7 times the age of his son at that time

Answer 1

Present age of father = x years, 

 present age of son = y years.

Five years ago,

 Age of father was = (x-5) years

 age of son was = (y-5) years

Now, according to the question,

⇒  (x−5) = 7(y - 5) + 2

⇒ x - 5 = 7y - 35 + 2

⇒ x − 7y − 5 + 35 − 2 = 0

⇒ x − 7y + 28= 0

Answer 2

Answer:

I hope this may help you ....