Question

57 is greater than x - 8

Answer 1

This is an inequality.

This is what the statement should look like: $57 > x - 8$

Now, you can actually "properly" reverse these meaning the equality sign changes too. So basically you can mirror them.

The "mirrored" inequality expression would look like this: $x - 8 < 57$

Now just like normal algebra, you can transpose these terms from 1 side to another and so, -8 would transpose to the right hand side and the operation would be the inverse or in this case, addition. The expression would look something like this: $x < 57 + 8$

Add them up and you get: $x < 65$ :D