30+x=3/2x

Solution for 30+x=3/2x equation:

30+x=3/2x

We move all terms to the left:

30+x-(3/2x)=0


Domain of the equation: 2x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

x-(+3/2x)+30=0

We get rid of parentheses

x-3/2x+30=0

We multiply all the terms by the denominator


x*2x+30*2x-3=0

Wy multiply elements

2x^2+60x-3=0

a = 2; b = 60; c = -3;
Δ = b2-4ac
Δ = 602-4·2·(-3)
Δ = 3624
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:

$\sqrt{\Delta}=\sqrt{3624}=\sqrt{4*906}=\sqrt{4}*\sqrt{906}=2\sqrt{906}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(60)-2\sqrt{906}}{2*2}=\frac{-60-2\sqrt{906}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(60)+2\sqrt{906}}{2*2}=\frac{-60+2\sqrt{906}}{4}
$