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x+2=(7/8)x-15
We move all terms to the left:
x+2-((7/8)x-15)=0
Domain of the equation: 8)x-15)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
x-((+7/8)x-15)+2=0
We multiply all the terms by the denominator
x*8)x-15)-((+2*8)x-15)+7=0
We add all the numbers together, and all the variables
x*8)x-15)-(16x-15)+7=0
Wy multiply elements
8x^2=0
a = 8; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·8·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{0}{16}=0$
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