X+(30/100)x=13.30

Solution for X+(30/100)x=13.30 equation:

X+(30/100)X=13.30

We move all terms to the left:

X+(30/100)X-(13.30)=0


Domain of the equation: 100)X!=0

X!=0/1

X!=0

X∈R


We add all the numbers together, and all the variables

X+(+30/100)X-(13.3)=0

We add all the numbers together, and all the variables

X+(+30/100)X-13.3=0

We multiply parentheses

30X^2+X-13.3=0

a = 30; b = 1; c = -13.3;
Δ = b2-4ac
Δ = 12-4·30·(-13.3)
Δ = 1597
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-\sqrt{1597}}{2*30}=\frac{-1-\sqrt{1597}}{60}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{1597}}{2*30}=\frac{-1+\sqrt{1597}}{60}
$