# Thread: Simple Algebra Question

1. ## Simple Algebra Question

Hello Folks,

I am in need to figure this formula out. I will put it in the simplest terms:

Original Formula as noted:
y = (a * b/c * d) - e * f

If I were to enter it in to the computer as this:

y = ((a * b)/(c * d)) - (e * f)

it gives me different results.

1. Could you please advice me on how to separate the original formula with parenthesis?

2. Considering I have all the value's except f, how would I solve for f?

Thank you in advance.

2. Originally Posted by mikenice69

Original Formula as noted:
y = (a * b/c * d) - e * f

If I were to enter it in to the computer as this:

y = ((a * b)/(c * d)) - (e * f)

it gives me different results.
Of course it does, as these are different equations.

Which one is yours? What are the values for $y,b,a,c,e,d$ ?

3. First one is the original. Let me PM you how exactly it was noted in the book...If you don't mind

4. Originally Posted by mikenice69
First one is the original. Let me PM you how exactly it was noted in the book...If you don't mind
It is preffered you post it in this thread.

5. Oh ok.

Lets say I have this:
y = (15*5.14/42*120) - .015*X

1. How would you further sperate this with parenthesis?

2. How you I solve for X when y is known?

Thanks again.

6. Originally Posted by mikenice69

1. How would you further sperate this with parenthesis?
follow the rules of BODMAS

Originally Posted by mikenice69

2. How you I solve for X when y is known?
y = (15*5.14/42*120) - .015*X

y - (15*5.14/42*120) = - .015*X

(y - (15*5.14/42*120))/(- .015) = X

7. Oh thank you!