18-5n=-n-4n(n-3)

Solution for 18-5n=-n-4n(n-3) equation:

18-5n=-n-4n(n-3)

We move all terms to the left:

18-5n-(-n-4n(n-3))=0


We calculate terms in parentheses: -(-n-4n(n-3)), so:

-n-4n(n-3)

We add all the numbers together, and all the variables

-1n-4n(n-3)

We multiply parentheses

-4n^2-1n+12n

We add all the numbers together, and all the variables

-4n^2+11n

Back to the equation:

-(-4n^2+11n)


We get rid of parentheses

4n^2-11n-5n+18=0

We add all the numbers together, and all the variables

4n^2-16n+18=0

a = 4; b = -16; c = +18;
Δ = b2-4ac
Δ = -162-4·4·18
Δ = -32
Delta is less than zero, so there is no solution for the equation