1/2x+1/2x+x-25+100+x-15=540

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Solution for 1/2x+1/2x+x-25+100+x-15=540 equation: 



1/2x+1/2x+x-25+100+x-15=540

We move all terms to the left:

1/2x+1/2x+x-25+100+x-15-(540)=0



Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R



We add all the numbers together, and all the variables

2x+1/2x+1/2x-480=0

We multiply all the terms by the denominator


2x*2x-480*2x+1+1=0

We add all the numbers together, and all the variables

2x*2x-480*2x+2=0

Wy multiply elements

4x^2-960x+2=0

a = 4; b = -960; c = +2;
Δ = b2-4ac
Δ = -9602-4·4·2
Δ = 921568
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:


$\sqrt{\Delta}=\sqrt{921568}=\sqrt{16*57598}=\sqrt{16}*\sqrt{57598}=4\sqrt{57598}$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-960)-4\sqrt{57598}}{2*4}=\frac{960-4\sqrt{57598}}{8}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-960)+4\sqrt{57598}}{2*4}=\frac{960+4\sqrt{57598}}{8}
$

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