3/4n-1=2/2n-5

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Solution for 3/4n-1=2/2n-5 equation:



3/4n-1=2/2n-5
We move all terms to the left:
3/4n-1-(2/2n-5)=0
Domain of the equation: 4n!=0
n!=0/4
n!=0
n∈R
Domain of the equation: 2n-5)!=0
n∈R
We get rid of parentheses
3/4n-2/2n+5-1=0
We calculate fractions
6n/8n^2+(-8n)/8n^2+5-1=0
We add all the numbers together, and all the variables
6n/8n^2+(-8n)/8n^2+4=0
We multiply all the terms by the denominator
6n+(-8n)+4*8n^2=0
Wy multiply elements
32n^2+6n+(-8n)=0
We get rid of parentheses
32n^2+6n-8n=0
We add all the numbers together, and all the variables
32n^2-2n=0
a = 32; b = -2; c = 0;
Δ = b2-4ac
Δ = -22-4·32·0
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-2}{2*32}=\frac{0}{64} =0 $
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+2}{2*32}=\frac{4}{64} =1/16 $

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