2x-9=-3/2x+5

Solution for 2x-9=-3/2x+5 equation:

2x-9=-3/2x+5

We move all terms to the left:

2x-9-(-3/2x+5)=0


Domain of the equation: 2x+5)!=0

x∈R


We get rid of parentheses

2x+3/2x-5-9=0

We multiply all the terms by the denominator


2x*2x-5*2x-9*2x+3=0

Wy multiply elements

4x^2-10x-18x+3=0

We add all the numbers together, and all the variables

4x^2-28x+3=0

a = 4; b = -28; c = +3;
Δ = b2-4ac
Δ = -282-4·4·3
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{-(-28)-4\sqrt{46}}{2*4}=\frac{28-4\sqrt{46}}{8}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-28)+4\sqrt{46}}{2*4}=\frac{28+4\sqrt{46}}{8}
$