Answer:
That is foiling. You are just breaking the equation by solving it.
Hope that helps and feel free to ask me more questions :)
Brainliest??
He should have added 1 to both sides to make the -1 on the right go to 0.
Then it would be 0 + m = -16 + 1 = -15
You can check your work by adding -1 and -15, which does in fact equal -16.
Hope this helped :)
