7k(2)+3k-6=-7

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Solution for 7k(2)+3k-6=-7 equation: 



7k(2)+3k-6=-7

We move all terms to the left:

7k(2)+3k-6-(-7)=0

We add all the numbers together, and all the variables

7k^2+3k+1=0

a = 7; b = 3; c = +1;
Δ = b2-4ac
Δ = 32-4·7·1
Δ = -19
Delta is less than zero, so there is no solution for the equation

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