x=(10-(.2*(x+2))-10.9)/9

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Solution for x=(10-(.2*(x+2))-10.9)/9 equation: 



x=(10-(.2(x+2))-10.9)/9

We move all terms to the left:

x-((10-(.2(x+2))-10.9)/9)=0

We multiply all the terms by the denominator


x*9)-((10-(.2(x+2))-10.9)=0

Wy multiply elements

9x^2=0

a = 9; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·9·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{18}=0$

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