15x+24=1/2x+5

Solution for 15x+24=1/2x+5 equation:

15x+24=1/2x+5

We move all terms to the left:

15x+24-(1/2x+5)=0


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

x∈R


We get rid of parentheses

15x-1/2x-5+24=0

We multiply all the terms by the denominator


15x*2x-5*2x+24*2x-1=0

Wy multiply elements

30x^2-10x+48x-1=0

We add all the numbers together, and all the variables

30x^2+38x-1=0

a = 30; b = 38; c = -1;
Δ = b2-4ac
Δ = 382-4·30·(-1)
Δ = 1564
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:

$\sqrt{\Delta}=\sqrt{1564}=\sqrt{4*391}=\sqrt{4}*\sqrt{391}=2\sqrt{391}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(38)-2\sqrt{391}}{2*30}=\frac{-38-2\sqrt{391}}{60}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(38)+2\sqrt{391}}{2*30}=\frac{-38+2\sqrt{391}}{60}
$