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20(x/5)=20(3/4
We move all terms to the left:
20(x/5)-(20(3/4)=0
We add all the numbers together, and all the variables
20(+x/5)-(20(+3/4)=0
We multiply parentheses
20x-(20(+3/4)=0
We multiply all the terms by the denominator
20x*4)-(20(+3=0
Wy multiply elements
80x^2=0
a = 80; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·80·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{0}{160}=0$
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