Hey guest, just letting u know u shouldnt tell them what the answer is. If you just answer the question but dont explain how, you are just giving them a free answer without them doing any work. If you see my answer above, i told them how to solve, but not the answer. Its like helping the cheater. If you check out the link below, Melody and a few others found some people that were using Web2Calc as a place to get free answers without doing any work. Dont be the guy that just goes around to every question and just writes the answer in. Its helping cheaters. If younwish to answer, write how to solve it, but not the answer. Let them have the chance to figure it out on their own.
As an edit yes this problem is very simple but still you shouldnt just give them the answers.
https://web2.0calc.com/questions/raziel305-is-using-this-as-a-cheat-site