x=(40-5x)/(15)

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Solution for x=(40-5x)/(15) equation: 



x=(40-5x)/(15)

We move all terms to the left:

x-((40-5x)/(15))=0

We add all the numbers together, and all the variables

x-((-5x+40)/15)=0

We multiply all the terms by the denominator


x*15)-((-5x+40)=0

Wy multiply elements

15x^2=0

a = 15; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·15·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{30}=0$

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