Thread: Re-arranging formula

I have the equation:

e=(a*c*d)-(d*(b-a))

and need to make d the subject?!

Cheers,

Sam

1. Expand d(b-a) first.
2. Expand -(d(b-a)) then.
3. Factorise all the d's
4. Divide by something to get d alone.

expand first bracket

e = acd - (d*(b-a))

expand second bracket

e = acd -db + da

divide both sides by d

e/d = ac - b + a

flip both sides

d/e = 1 / ac - b + a

multiply both sides by e

d = e / ac - b + a

Awesome, thanks Joel