-1/2x-20=4x-20

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Solution for -1/2x-20=4x-20 equation: 



-1/2x-20=4x-20

We move all terms to the left:

-1/2x-20-(4x-20)=0



Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R



We get rid of parentheses

-1/2x-4x+20-20=0

We multiply all the terms by the denominator


-4x*2x+20*2x-20*2x-1=0

Wy multiply elements

-8x^2+40x-40x-1=0

We add all the numbers together, and all the variables

-8x^2-1=0

a = -8; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-8)·(-1)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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