Describe and correct error

Question

[-13]- [13]
= -13 - 13
= -26

thanks

Answer 1

From your information, I don't see an error. May the error is asking you to describe one.

Answer 2

wait. are the brackets around the numbers saying to find their absolute value, or is that just ot separate them?

Answer 3

Absolute numbers are not indicated by brackets "[]" but by straight lines "II".

I-13I - I13I = 0

(The vertical lines should be longer, but I don't know how to print them on the computer.)

Answer 4

thanks they were straight lines so I am going with 0 thanks