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20x+7=5(3x-8/5)
We move all terms to the left:
20x+7-(5(3x-8/5))=0
We add all the numbers together, and all the variables
20x-(5(+3x-8/5))+7=0
We multiply all the terms by the denominator
20x*5))-(5(+3x-8+7*5))=0
We add all the numbers together, and all the variables
20x*5))-(5(3x+27))=0
We add all the numbers together, and all the variables
20x*5))-(5(3x=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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