Question

72-(63-8) and (72-63)-8

Answer 1

They are not equal because for each you get different answer.


`72-(63-8) \\ 72-55 \\ 17`


`(72-63)-8 \\ 9-8 \\ 1`

17 and 1 are not equal.

Therefore, the two expressions 72-(63-8) and (72-63)-8 are not equal .

Answer 2

The Priority is always to parenthesis. It means that in both equations, begin by operating what's inside the parenthesis. Then Subtract what's left.

For the first one you get:

`72 - (63-8)`

`72 - 55`

`17`

For the second one you get:

`(72-63)-8`

`9-8`

`1`

Which mean that The 2 equations are not equal, because
`17 \ \textgreater \ 1`
Hope this Helps! :D