1/2y=-2y-2

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Solution for 1/2y=-2y-2 equation: 



1/2y=-2y-2

We move all terms to the left:

1/2y-(-2y-2)=0



Domain of the equation: 2y!=0

y!=0/2

y!=0

y∈R



We get rid of parentheses

1/2y+2y+2=0

We multiply all the terms by the denominator


2y*2y+2*2y+1=0

Wy multiply elements

4y^2+4y+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:
$y=\frac{-b}{2a}=\frac{-4}{8}=-1/2$

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