2x-15=1/2x+15

Solution for 2x-15=1/2x+15 equation:

2x-15=1/2x+15

We move all terms to the left:

2x-15-(1/2x+15)=0


Domain of the equation: 2x+15)!=0

x∈R


We get rid of parentheses

2x-1/2x-15-15=0

We multiply all the terms by the denominator


2x*2x-15*2x-15*2x-1=0

Wy multiply elements

4x^2-30x-30x-1=0

We add all the numbers together, and all the variables

4x^2-60x-1=0

a = 4; b = -60; c = -1;
Δ = b2-4ac
Δ = -602-4·4·(-1)
Δ = 3616
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:

$\sqrt{\Delta}=\sqrt{3616}=\sqrt{16*226}=\sqrt{16}*\sqrt{226}=4\sqrt{226}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-60)-4\sqrt{226}}{2*4}=\frac{60-4\sqrt{226}}{8}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-60)+4\sqrt{226}}{2*4}=\frac{60+4\sqrt{226}}{8}
$