Brain Test Level 664: Make it correct.
Brain Test Level 664
Screenshots

Quick Answer
Drag the vertical line of the plus sign away to make it a minus, then drag that minus sign under the other minus to form an equals sign.
Skills Tested
Step-by-Step Solution
- 1) Look at the equation and its signs.
- 2) Drag the vertical line off the plus sign.
- 3) Turn the plus into a minus.
- 4) Place the line under the other minus to form an equals sign.
Hint
Reveal a hint
Turn a plus into a minus and build an equals sign.
Why It Works
The equation fails because of its signs. Removing the vertical bar from the plus turns it into a minus, and positioning that bar beneath another minus forms an equals sign that makes the whole statement correct.
Frequently asked questions
How do I make the equation correct in Brain Test level 664?
Drag the plus vertical line away to make a minus, then use it under the other minus to form an equals sign.
What is the answer to Brain Test level 664?
Pull the vertical line from the plus to make a minus and build an equals sign with it.
Why turn plus into minus in Brain Test level 664?
Changing the signs is the only way to make the equation mathematically correct.
What is the trick in Brain Test level 664?
The trick is reshaping the signs to fix the equation.
How do I build an equals sign in Brain Test level 664?
Place the removed vertical line beneath another minus sign to complete it.
Is there a video walkthrough for Brain Test level 664?
Yes, the embedded video shows the signs being reshaped.