-5-(4/5)n=7

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Solution for -5-(4/5)n=7 equation: 



-5-(4/5)n=7

We move all terms to the left:

-5-(4/5)n-(7)=0



Domain of the equation: 5)n!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

-(+4/5)n-5-7=0

We add all the numbers together, and all the variables

-(+4/5)n-12=0

We multiply parentheses

-4n^2-12=0

a = -4; b = 0; c = -12;
Δ = b2-4ac
Δ = 02-4·(-4)·(-12)
Δ = -192
Delta is less than zero, so there is no solution for the equation

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