r(-7/9)=7.6

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Solution for r(-7/9)=7.6 equation: 



r(-7/9)=7.6

We move all terms to the left:

r(-7/9)-(7.6)=0

We add all the numbers together, and all the variables

r(-7/9)-7.6=0

We multiply parentheses

-7r^2-7.6=0

a = -7; b = 0; c = -7.6;
Δ = b2-4ac
Δ = 02-4·(-7)·(-7.6)
Δ = -212.8
Delta is less than zero, so there is no solution for the equation

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