2.5x+6=5/4x

Solution for 2.5x+6=5/4x equation:

2.5x+6=5/4x

We move all terms to the left:

2.5x+6-(5/4x)=0


Domain of the equation: 4x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

2.5x-(+5/4x)+6=0

We get rid of parentheses

2.5x-5/4x+6=0

We multiply all the terms by the denominator


(2.5x)*4x+6*4x-5=0

We add all the numbers together, and all the variables

(+2.5x)*4x+6*4x-5=0

We multiply parentheses

8x^2+6*4x-5=0

Wy multiply elements

8x^2+24x-5=0

a = 8; b = 24; c = -5;
Δ = b2-4ac
Δ = 242-4·8·(-5)
Δ = 736
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{736}=\sqrt{16*46}=\sqrt{16}*\sqrt{46}=4\sqrt{46}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(24)-4\sqrt{46}}{2*8}=\frac{-24-4\sqrt{46}}{16}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(24)+4\sqrt{46}}{2*8}=\frac{-24+4\sqrt{46}}{16}
$