2+2n=-1/2(n)

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Solution for 2+2n=-1/2(n) equation: 



2+2n=-1/2(n)

We move all terms to the left:

2+2n-(-1/2(n))=0



Domain of the equation: 2n)!=0

n!=0/1

n!=0

n∈R



We get rid of parentheses

2n+1/2n+2=0

We multiply all the terms by the denominator


2n*2n+2*2n+1=0

Wy multiply elements

4n^2+4n+1=0

a = 4; b = 4; c = +1;
Δ = b2-4ac
Δ = 42-4·4·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$n=\frac{-b}{2a}=\frac{-4}{8}=-1/2$

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