w(-5)=(7(-5)-22)/4

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Solution for w(-5)=(7(-5)-22)/4 equation: 



w(-5)=(7(-5)-22)/4

We move all terms to the left:

w(-5)-((7(-5)-22)/4)=0

We multiply parentheses

-5w-((7(-5)-22)/4)=0

We multiply all the terms by the denominator


-5w*4)-((7(-5)-22)=0

Wy multiply elements

-20w^2=0

a = -20; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-20)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$w=\frac{-b}{2a}=\frac{0}{-40}=0$

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