-(3/7)u=9

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Solution for -(3/7)u=9 equation: 



-(3/7)u=9

We move all terms to the left:

-(3/7)u-(9)=0



Domain of the equation: 7)u!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(+3/7)u-9=0

We multiply parentheses

-3u^2-9=0

a = -3; b = 0; c = -9;
Δ = b2-4ac
Δ = 02-4·(-3)·(-9)
Δ = -108
Delta is less than zero, so there is no solution for the equation

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