Question

Nathan's brother says when he multiples a number by 6 and adds 5 to the result he gets 23. To figure out the number, what should Nathan do first?

Answer 1

We should go in reverse of what he did. So. What did he do last?

Answer 2

ok so you need to take and multiply the two numbers you have and then take the 23 and subtract the product of the first two numbers to get the number that is missing

Answer 3

its called backtracking here is a diagram