-9n2=7-5n

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Solution for -9n2=7-5n equation: 



-9n^2=7-5n

We move all terms to the left:

-9n^2-(7-5n)=0

We add all the numbers together, and all the variables

-9n^2-(-5n+7)=0

We get rid of parentheses

-9n^2+5n-7=0

a = -9; b = 5; c = -7;
Δ = b2-4ac
Δ = 52-4·(-9)·(-7)
Δ = -227
Delta is less than zero, so there is no solution for the equation

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