2/3x-8/5=2/15x

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Solution for 2/3x-8/5=2/15x equation:



2/3x-8/5=2/15x
We move all terms to the left:
2/3x-8/5-(2/15x)=0
Domain of the equation: 3x!=0
x!=0/3
x!=0
x∈R
Domain of the equation: 15x)!=0
x!=0/1
x!=0
x∈R
We add all the numbers together, and all the variables
2/3x-(+2/15x)-8/5=0
We get rid of parentheses
2/3x-2/15x-8/5=0
We calculate fractions
(-360x^2)/1125x^2+750x/1125x^2+(-150x)/1125x^2=0
We multiply all the terms by the denominator
(-360x^2)+750x+(-150x)=0
We get rid of parentheses
-360x^2+750x-150x=0
We add all the numbers together, and all the variables
-360x^2+600x=0
a = -360; b = 600; c = 0;
Δ = b2-4ac
Δ = 6002-4·(-360)·0
Δ = 360000
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{360000}=600$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(600)-600}{2*-360}=\frac{-1200}{-720} =1+2/3 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(600)+600}{2*-360}=\frac{0}{-720} =0 $

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