Question

if the difference a number and four is tripled, the result is six less than the number. Find the number.

Answer 1

3 (n-4) = n-6
3n - 12 = n - 6
3n - 12 + 12 = n - 6 + 12
3n - n = n + 6 -n
2n = 6
n = 3

* Hope that helped :)