Question

- The output of a function is 3 less than 6 times the

input. Find the input when the output is 15.

Answer 1

(15+3)/6= the input

18/6= 3

since the output is three less than 6x the input, you need to add three. and if the output is 6 times the input after adding three, you have to divide by 6 to find out what the input originally was. you can check it by doing:

6*3= 18

and 18-3= 15 so it checks out.

Explanation:

I hope this helps :)