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x=(80+x-20)/100
We move all terms to the left:
x-((80+x-20)/100)=0
We add all the numbers together, and all the variables
x-((x+60)/100)=0
We multiply all the terms by the denominator
x*100)-((x+60)=0
Wy multiply elements
100x^2=0
a = 100; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·100·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{0}{200}=0$
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