A person was asked to state his age in years. His reply was "Take my a

1.	A person was asked to state his age in years. His reply was "Take my age fourhence, multiply it by four and then subtract 4 times my age four years ago whichequal to my present age". Find the age of the person.
Answer» Let the present age of the person be x yearsThen 4(x+4)-4(x-4)=x(4x+16) - (4x-16) = x4x+16-4x+16 = x x = 32 years why we write x+4 , he is saying that take my age 4 years .PLEASE explain me, I am not understanding

A person was asked to state his age in years. His reply was "Take my age fourhence, multiply it by four and then subtract 4 times my age four years ago whichequal to my present age". Find the age of the person.

Answer»

Let the present age of the person be x yearsThen 4(x+4)-4(x-4)=x(4x+16) - (4x-16) = x4x+16-4x+16 = x

x = 32 years

why we write x+4 , he is saying that take my age 4 years .PLEASE explain me, I am not understanding