((9k+21)/2)=8k

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Solution for ((9k+21)/2)=8k equation: 



((9k+21)/2)=8k

We move all terms to the left:

((9k+21)/2)-(8k)=0

We add all the numbers together, and all the variables

-8k+((9k+21)/2)=0

We multiply all the terms by the denominator


-8k*2)+((9k+21)=0

Wy multiply elements

-16k^2=0

a = -16; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-16)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$k=\frac{-b}{2a}=\frac{0}{-32}=0$

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