Question

How do you insert parentheses to make `6xx7-3xx4+1=27` true?

Answer 1

`6xx7-3xxcolor(blue)((4+1))=27`

Explanation:

We got: `6xx7-3xx4+1=27`

So, in order to make this true, we insert parenthesis here:

`6xx7-3xxcolor(blue)((4+1))=27`

`6xx7-3xx5=27`

`42-15=27`

`27=27`

Obviously this is true, so we need to insert the brackets at the `4+1` part.