algebra
posted by Lisa .
Here is the problem I am working on and what I did so far:
4+m3m
First I did this:
4+(m3m)
Then I did this:
4+(2m)
I thought my answer should be:
42m
The answer key says the answer should be:
2m+4
What did I do wrong?

you did nothing wrong, your answer is correct,
yours is just in a different order
(isn't
3+4 = 4+3 or
+5  9 = 9 + 5 ?)