-3/n+5/2n=-6

Solution for -3/n+5/2n=-6 equation:

-3/n+5/2n=-6

We move all terms to the left:

-3/n+5/2n-(-6)=0


Domain of the equation: n!=0

n∈R



Domain of the equation: 2n!=0

n!=0/2

n!=0

n∈R


We add all the numbers together, and all the variables

-3/n+5/2n+6=0

We calculate fractions


(-6n)/2n^2+5n/2n^2+6=0

We multiply all the terms by the denominator


(-6n)+5n+6*2n^2=0

We add all the numbers together, and all the variables

5n+(-6n)+6*2n^2=0

Wy multiply elements

12n^2+5n+(-6n)=0

We get rid of parentheses

12n^2+5n-6n=0

We add all the numbers together, and all the variables

12n^2-1n=0

a = 12; b = -1; c = 0;
Δ = b2-4ac
Δ = -12-4·12·0
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-1}{2*12}=\frac{0}{24}
=0
$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+1}{2*12}=\frac{2}{24}
=1/12
$