Maths - Algebra - Changing The Subject

Gender:
Points: 1384
Reviews: 19
Mon Mar 21, 2011 5:45 pm
View Likes
Shizzley says...

Ok, so I am baffled. Any kind of help will be appreciated as I have to complete this questions soon. I am meant to make x the subject in each one and I worked out some (wehay) but the others ahve just stumped me.

1) y = x-b/a

2) y = ax+c

3) y = ax + b/c

4) y = ax-c/b

5) y = a+b+x

6) y = x-a+b/c

Thanks xxx
I'm going to Hagrid's, I've got a good feeling about going to Hagrid's.

Gender:
Points: 77025
Reviews: 1072
Tue Mar 22, 2011 12:10 am
Kyllorac says...

Parentheses would be helpful. Right now, I can't tell where the fractions start and end. For instance, is the first question x-a divided by b, or is it x minus a/b?
Screwing with gender since 1995.

There are no chickens in Hyrule.

Gender:
Points: 1691
Reviews: 72
Fri Apr 01, 2011 4:14 am

If I understand, you need to "reverse operate," being the best way I can put it. I don't know what its officially called, but... that's not important. And, the parenthesis would be helpful, but with order of operations it shouldn't matter.
I'll also assume that you already handed this in, but I'll post for any future readers or if you don't get it, still.

1) y=x-b/a