
Al P. answered 09/09/20
Online Mathematics tutor
A number: n
6 times a number: 6n
25 less than 6 times a number: 6n - 25
6n - 25 = 83 (*)
6n - 25 + 25 = 83 + 25
6n = 108 (*)
6n / 6 = 108 / 6
n = 18 (*)
(*) With very little practice, you should be able to write just these three lines.