Question

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

Answer 1

father=x
son=y
5 yrs before,
father=x-5
son=y-5
then given,
father before 2 yrs=2 yrs more than 7 times sons age
x-5=2+7y-35
x-5=7y-33
x-5-7y+33=0
x+28-7y=0