Ia+1I/Ia-1I=1

Solution for Ia+1I/Ia-1I=1 equation:

I+1/I-1=1

We move all terms to the left:

I+1/I-1-(1)=0


Domain of the equation: I!=0

I∈R


We add all the numbers together, and all the variables

I+1/I-2=0

We multiply all the terms by the denominator


I*I-2*I+1=0

We add all the numbers together, and all the variables

-2I+I*I+1=0

Wy multiply elements

I^2-2I+1=0

a = 1; b = -2; c = +1;
Δ = b2-4ac
Δ = -22-4·1·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$I=\frac{-b}{2a}=\frac{2}{2}=1$