3/4x-5/6=2/3x+4

Solution for 3/4x-5/6=2/3x+4 equation:

3/4x-5/6=2/3x+4

We move all terms to the left:

3/4x-5/6-(2/3x+4)=0


Domain of the equation: 4x!=0

x!=0/4

x!=0

x∈R



Domain of the equation: 3x+4)!=0

x∈R


We get rid of parentheses

3/4x-2/3x-4-5/6=0

We calculate fractions


(-180x^2)/432x^2+324x/432x^2+(-288x)/432x^2-4=0

We multiply all the terms by the denominator


(-180x^2)+324x+(-288x)-4*432x^2=0

Wy multiply elements

(-180x^2)-1728x^2+324x+(-288x)=0

We get rid of parentheses

-180x^2-1728x^2+324x-288x=0

We add all the numbers together, and all the variables

-1908x^2+36x=0

a = -1908; b = 36; c = 0;
Δ = b2-4ac
Δ = 362-4·(-1908)·0
Δ = 1296
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1296}=36$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(36)-36}{2*-1908}=\frac{-72}{-3816}
=1/53
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(36)+36}{2*-1908}=\frac{0}{-3816}
=0
$