3/4x+1/2=1/8x+8

Solution for 3/4x+1/2=1/8x+8 equation:

3/4x+1/2=1/8x+8

We move all terms to the left:

3/4x+1/2-(1/8x+8)=0


Domain of the equation: 4x!=0

x!=0/4

x!=0

x∈R



Domain of the equation: 8x+8)!=0

x∈R


We get rid of parentheses

3/4x-1/8x-8+1/2=0

We calculate fractions


256x^2/128x^2+96x/128x^2+(-16x)/128x^2-8=0

We multiply all the terms by the denominator


256x^2+96x+(-16x)-8*128x^2=0

Wy multiply elements

256x^2-1024x^2+96x+(-16x)=0

We get rid of parentheses

256x^2-1024x^2+96x-16x=0

We add all the numbers together, and all the variables

-768x^2+80x=0

a = -768; b = 80; c = 0;
Δ = b2-4ac
Δ = 802-4·(-768)·0
Δ = 6400
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{6400}=80$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(80)-80}{2*-768}=\frac{-160}{-1536}
=5/48
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(80)+80}{2*-768}=\frac{0}{-1536}
=0
$