I am doing homework on Combine Like terms. But I came to a problem that i just need to know the "how to" on this one.
-2n - (9 - 10n)
Now the answer is 8n - 9
I got at first -12n - 9
Can someone just explain the proper steps for this problem?
I am doing homework on Combine Like terms. But I came to a problem that i just need to know the "how to" on this one.
-2n - (9 - 10n)
Now the answer is 8n - 9
I got at first -12n - 9
Can someone just explain the proper steps for this problem?