Question

What expressions are equivalent to 4-x

Answer 1

-x+4, 8-2x e.t.c

Explanation:

To be able to do this:

You simply rearrange or you do the same to top and bottom.

So for the first one , if we substitute x we get:

4-1=3

The rearranged one I made which is my first answer would give:

-1+4=3