Answer:
this is a very easy question, it is a word problem which needs thinking before u can solve it ........wait it doesn't actually need thinking because it so easy. u just need to understand the question
[tex]n \div 3 = - 5 \: \\ multiply \: both \: sides \: by \: 3 \\ n \div 3 \times 3= - 5 \times 3 \\ n \times \frac{1}{3} \times 3= - 15 \\ n = - 15[/tex]