1/4x-2=9+1/8x

Solution for 1/4x-2=9+1/8x equation:

1/4x-2=9+1/8x

We move all terms to the left:

1/4x-2-(9+1/8x)=0


Domain of the equation: 4x!=0

x!=0/4

x!=0

x∈R



Domain of the equation: 8x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

1/4x-(1/8x+9)-2=0

We get rid of parentheses

1/4x-1/8x-9-2=0

We calculate fractions


8x/32x^2+(-4x)/32x^2-9-2=0

We add all the numbers together, and all the variables

8x/32x^2+(-4x)/32x^2-11=0

We multiply all the terms by the denominator


8x+(-4x)-11*32x^2=0

Wy multiply elements

-352x^2+8x+(-4x)=0

We get rid of parentheses

-352x^2+8x-4x=0

We add all the numbers together, and all the variables

-352x^2+4x=0

a = -352; b = 4; c = 0;
Δ = b2-4ac
Δ = 42-4·(-352)·0
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4}{2*-352}=\frac{-8}{-704}
=1/88
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4}{2*-352}=\frac{0}{-704}
=0
$