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7x-15=-(x/2)
We move all terms to the left:
7x-15-(-(x/2))=0
We add all the numbers together, and all the variables
7x-(-(+x/2))-15=0
We multiply all the terms by the denominator
7x*2))-(-(+x-15*2))=0
We add all the numbers together, and all the variables
7x*2))-(-(x-30))=0
We add all the numbers together, and all the variables
7x*2))-(-(x=0
Wy multiply elements
14x^2=0
a = 14; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·14·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{0}{28}=0$
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