(x-6)+(X-10)=7X/5X

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Solution for (x-6)+(X-10)=7X/5X equation:



(x-6)+(x-10)=7x/5x
We move all terms to the left:
(x-6)+(x-10)-(7x/5x)=0
Domain of the equation: 5x)!=0
x!=0/1
x!=0
x∈R
We add all the numbers together, and all the variables
(x-6)+(x-10)-(+7x/5x)=0
We get rid of parentheses
x+x-7x/5x-6-10=0
We multiply all the terms by the denominator
x*5x+x*5x-7x-6*5x-10*5x=0
We add all the numbers together, and all the variables
-7x+x*5x+x*5x-6*5x-10*5x=0
Wy multiply elements
5x^2+5x^2-7x-30x-50x=0
We add all the numbers together, and all the variables
10x^2-87x=0
a = 10; b = -87; c = 0;
Δ = b2-4ac
Δ = -872-4·10·0
Δ = 7569
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{7569}=87$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-87)-87}{2*10}=\frac{0}{20} =0 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-87)+87}{2*10}=\frac{174}{20} =8+7/10 $

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