脑洞大师：全明星 第 641 关：Find the answer.
脑洞大师：全明星 第 641 关
通关截图
快速答案
Drag the roll-up screen up to reveal 'x = 2' on the blackboard, then enter '7' as the answer.
考察能力
分步解法
- 1) Grab the roll-up screen and drag it upward.
- 2) Read x = 2 on the blackboard.
- 3) Type 7 as the answer and submit.
提示
查看提示
Roll up the screen to see the hidden equation work.
为什么有效
The number on display is misleading because the true equation is hidden behind the screen. Reveal x = 2, follow the logic, and the answer turns out to be 7.
常见问题
How do I find the answer in Brain Test All-Star Level 641?
Drag the roll-up screen up to reveal x = 2 on the blackboard, then enter 7.
What is the answer to Brain Test All-Star Level 641?
The answer is 7, which you find after revealing x = 2 behind the screen.
What is the trick in Brain Test All-Star Level 641?
The real equation is hidden behind the roll-up screen, so the visible number misleads you.
Why do I roll up the screen in Brain Test All-Star Level 641?
Rolling it up reveals the hidden working that leads to the answer 7.
Is there a video walkthrough for Brain Test All-Star Level 641?
Yes. The embedded video shows rolling up the screen and entering 7.
How do I avoid getting stuck in Brain Test All-Star Level 641?
Do not trust the number on display; roll up the screen to see the true equation.