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x-3=(12-x)/7
We move all terms to the left:
x-3-((12-x)/7)=0
We add all the numbers together, and all the variables
x-((-1x+12)/7)-3=0
We multiply all the terms by the denominator
x*7)-((-1x+12)-3*7)=0
We add all the numbers together, and all the variables
x*7)-((-1x+12)=0
Wy multiply elements
7x^2=0
a = 7; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·7·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{0}{14}=0$
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