The answer is really quite simple.

实际上答案相当简单。

《牛津词典》

Some puzzles look difficult but are actually quite simple.

有些谜看似很难，但实际上相当容易解开。

《柯林斯英汉双解大词典》

In the past, doing the timetabling was quite simple but now we have a lot more courses and what's made it complicated is that many of them have options.

在过去，做时间表是很简单的，但现在我们有更多的课程，让这个过程变得复杂的是，当中许多课程还有不同选择。

youdao

What would you tell him to take?'" "'Oh,that is quite simple,' said Abernathy.

VOA: special.2009.12.26

Let me start out by putting what I think is a relatively controversial proposition on the table and that's that this investment management business, when stripped down to its bare essentials, is really quite simple.

让我从一个,相对争议的话题开始,投资管理业务,当剥离种种表象追溯到其本质时,其实非常简单

耶鲁公开课 - 金融市场课程节选

Seems quite simple to me.

在我看来很简单。

哈佛公开课 - 幸福课课程节选

The idea is quite simple: Kids need activities and role models to stay out of trouble.

FORBES: Magazine Article

Though the game is more difficult today, the formula for success is quite simple.

FORBES: The Moneyball Cure For What Now Ails Hollywood

Confirmation fraud, someone providing false information, is not new and it is quite simple.

FORBES: "Millionaire Matchmaker" Contestant Pleads Guilty