3/2x-11+x=4x-1

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Solution for 3/2x-11+x=4x-1 equation:



3/2x-11+x=4x-1
We move all terms to the left:
3/2x-11+x-(4x-1)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
We add all the numbers together, and all the variables
x+3/2x-(4x-1)-11=0
We get rid of parentheses
x+3/2x-4x+1-11=0
We multiply all the terms by the denominator
x*2x-4x*2x+1*2x-11*2x+3=0
Wy multiply elements
2x^2-8x^2+2x-22x+3=0
We add all the numbers together, and all the variables
-6x^2-20x+3=0
a = -6; b = -20; c = +3;
Δ = b2-4ac
Δ = -202-4·(-6)·3
Δ = 472
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{472}=\sqrt{4*118}=\sqrt{4}*\sqrt{118}=2\sqrt{118}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-20)-2\sqrt{118}}{2*-6}=\frac{20-2\sqrt{118}}{-12} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-20)+2\sqrt{118}}{2*-6}=\frac{20+2\sqrt{118}}{-12} $

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