Question

five years ago jacob age was seven times that of his son . after 5 years the age of Jacob will be three times that of his son. represent algebraic expressions

Answer 1

Hey!!!!

Let the present ages of Jacob and his son be x and y years respectively.

ATQ,

Case 1
5 years ago

( x - 5 ) = 7( y - 5 )
=> x - 5 = 7y - 35
=> x - 7y + 30 = 0

Case 2
5 years Hence (future)

( x + 5 ) = 3( y + 5 )
=> x + 5 = 3y + 15
=> x - 3y - 10 = 0

Hope this helps

Answer 2

Answer:

ur answer in the pic Hope it helps you