Homework Help: Solve e ^-1 = 5-y^2+y for x

1. Apr 8, 2015

masterchiefo

1. The problem statement, all variables and given/known data
Solve e x-1 = 5-y2+y for x

2. Relevant equations
/

3. The attempt at a solution
ln(ex-1)=ln(5-y2+y)
x-1=ln(5-y2+y)
x=ln(5-y2+y)+1

can I go any further ?

Last edited: Apr 8, 2015
2. Apr 8, 2015

Delta²

Nope, just mind one thing, you have to include a constraint that 5-y2+y>0 which holds only if y satisfies an inequality regarding its values.

Btw i just noticed one small "typo", it should be x=ln(..)+1 not -1...

3. Apr 8, 2015

masterchiefo

thank you very much for the help man :)
oops fixed that typo