Question

Which expressions are equivalent to this expression?

3(n+4)

3n+4
12+n+n+n
3n−12
2n+12+n

WILL MEDAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

We will start by expanding (or multiplying through) with 3(n+4)

We get:
3n + 12
3n can be expanded to equal 2n+n, so the correct answer will be
2n + 12 + n

Simply add the options together and see what one matches 3n + 12

2n + 12 + n = 3n + 12, which in turn equals 3(n+4)

ANSWER: 2n + 12 + n

Answer 2

12+n+n+n

2n+12+n

Explanation:

I took the test on K12 and this was the right answer