13/4x+7=5/2x+13

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Solution for 13/4x+7=5/2x+13 equation:



13/4x+7=5/2x+13
We move all terms to the left:
13/4x+7-(5/2x+13)=0
Domain of the equation: 4x!=0
x!=0/4
x!=0
x∈R
Domain of the equation: 2x+13)!=0
x∈R
We get rid of parentheses
13/4x-5/2x-13+7=0
We calculate fractions
26x/8x^2+(-20x)/8x^2-13+7=0
We add all the numbers together, and all the variables
26x/8x^2+(-20x)/8x^2-6=0
We multiply all the terms by the denominator
26x+(-20x)-6*8x^2=0
Wy multiply elements
-48x^2+26x+(-20x)=0
We get rid of parentheses
-48x^2+26x-20x=0
We add all the numbers together, and all the variables
-48x^2+6x=0
a = -48; b = 6; c = 0;
Δ = b2-4ac
Δ = 62-4·(-48)·0
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-6}{2*-48}=\frac{-12}{-96} =1/8 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+6}{2*-48}=\frac{0}{-96} =0 $

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