3-1/2x=5/8x

Solution for 3-1/2x=5/8x equation:

3-1/2x=5/8x

We move all terms to the left:

3-1/2x-(5/8x)=0


Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R



Domain of the equation: 8x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

-1/2x-(+5/8x)+3=0

We get rid of parentheses

-1/2x-5/8x+3=0

We calculate fractions


(-8x)/16x^2+(-10x)/16x^2+3=0

We multiply all the terms by the denominator


(-8x)+(-10x)+3*16x^2=0

Wy multiply elements

48x^2+(-8x)+(-10x)=0

We get rid of parentheses

48x^2-8x-10x=0

We add all the numbers together, and all the variables

48x^2-18x=0

a = 48; b = -18; c = 0;
Δ = b2-4ac
Δ = -182-4·48·0
Δ = 324
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{324}=18$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-18}{2*48}=\frac{0}{96}
=0
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+18}{2*48}=\frac{36}{96}
=3/8
$