1/2x+6-2x=-5-x

Solution for 1/2x+6-2x=-5-x equation:

1/2x+6-2x=-5-x

We move all terms to the left:

1/2x+6-2x-(-5-x)=0


Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R


We add all the numbers together, and all the variables

1/2x-2x-(-1x-5)+6=0

We add all the numbers together, and all the variables

-2x+1/2x-(-1x-5)+6=0

We get rid of parentheses

-2x+1/2x+1x+5+6=0

We multiply all the terms by the denominator


-2x*2x+1x*2x+5*2x+6*2x+1=0

Wy multiply elements

-4x^2+2x^2+10x+12x+1=0

We add all the numbers together, and all the variables

-2x^2+22x+1=0

a = -2; b = 22; c = +1;
Δ = b2-4ac
Δ = 222-4·(-2)·1
Δ = 492
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:

$\sqrt{\Delta}=\sqrt{492}=\sqrt{4*123}=\sqrt{4}*\sqrt{123}=2\sqrt{123}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(22)-2\sqrt{123}}{2*-2}=\frac{-22-2\sqrt{123}}{-4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(22)+2\sqrt{123}}{2*-2}=\frac{-22+2\sqrt{123}}{-4}
$