1/3x+x=50

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Solution for 1/3x+x=50 equation:



1/3x+x=50
We move all terms to the left:
1/3x+x-(50)=0
Domain of the equation: 3x!=0
x!=0/3
x!=0
x∈R
We add all the numbers together, and all the variables
x+1/3x-50=0
We multiply all the terms by the denominator
x*3x-50*3x+1=0
Wy multiply elements
3x^2-150x+1=0
a = 3; b = -150; c = +1;
Δ = b2-4ac
Δ = -1502-4·3·1
Δ = 22488
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:
$\sqrt{\Delta}=\sqrt{22488}=\sqrt{4*5622}=\sqrt{4}*\sqrt{5622}=2\sqrt{5622}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-150)-2\sqrt{5622}}{2*3}=\frac{150-2\sqrt{5622}}{6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-150)+2\sqrt{5622}}{2*3}=\frac{150+2\sqrt{5622}}{6} $

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