-5/9x+1=2/3x-10

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Solution for -5/9x+1=2/3x-10 equation:



-5/9x+1=2/3x-10
We move all terms to the left:
-5/9x+1-(2/3x-10)=0
Domain of the equation: 9x!=0
x!=0/9
x!=0
x∈R
Domain of the equation: 3x-10)!=0
x∈R
We get rid of parentheses
-5/9x-2/3x+10+1=0
We calculate fractions
(-15x)/27x^2+(-18x)/27x^2+10+1=0
We add all the numbers together, and all the variables
(-15x)/27x^2+(-18x)/27x^2+11=0
We multiply all the terms by the denominator
(-15x)+(-18x)+11*27x^2=0
Wy multiply elements
297x^2+(-15x)+(-18x)=0
We get rid of parentheses
297x^2-15x-18x=0
We add all the numbers together, and all the variables
297x^2-33x=0
a = 297; b = -33; c = 0;
Δ = b2-4ac
Δ = -332-4·297·0
Δ = 1089
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1089}=33$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-33)-33}{2*297}=\frac{0}{594} =0 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-33)+33}{2*297}=\frac{66}{594} =1/9 $

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