-56x/28x=x

Solution for -56x/28x=x equation:

-56x/28x=x

We move all terms to the left:

-56x/28x-(x)=0


Domain of the equation: 28x!=0

x!=0/28

x!=0

x∈R


We add all the numbers together, and all the variables

-1x-56x/28x=0

We multiply all the terms by the denominator


-1x*28x-56x=0

We add all the numbers together, and all the variables

-56x-1x*28x=0

Wy multiply elements

-28x^2-56x=0

a = -28; b = -56; c = 0;
Δ = b2-4ac
Δ = -562-4·(-28)·0
Δ = 3136
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{3136}=56$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-56)-56}{2*-28}=\frac{0}{-56}
=0
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-56)+56}{2*-28}=\frac{112}{-56}
=-2
$