Question

what is the value of x when 40x = x+4

Answer 1

40x = x+4
x= (x+4)/40
x= x/40+4/40
x-x/40= 4/40
(40x-x)/40= 1/10
39x/40= 1/10
39x= 1/10*40
x= 4/39

Answer 2

36 because you do 40-4=36
Hope this helps