So I am doing an equation for straight line graphs and one of the expressions simplified out to:
It then said this could simply again to (5/10)x.
Why does this work?
I understand if I do it in my calculator (substituting x = 3)
5 * 3 = 15
15 / 10 = 1.5
5/10 = 0.5
0.5 * 3 = 1.5
They both give the same answer.
But I am trying to UNDERSTAND why this works as I am still confused.
I thought this only worked with terms that started with a + or - (where we could re-arrange them any way we wanted).
Why does it work here?