r(-7/8)=6/5

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Solution for r(-7/8)=6/5 equation: 



r(-7/8)=6/5

We move all terms to the left:

r(-7/8)-(6/5)=0

We add all the numbers together, and all the variables

r(-7/8)-(+6/5)=0

We multiply parentheses

-7r^2-(+6/5)=0

We get rid of parentheses

-7r^2-6/5=0

We multiply all the terms by the denominator


-7r^2*5-6=0

Wy multiply elements

-35r^2-6=0

a = -35; b = 0; c = -6;
Δ = b2-4ac
Δ = 02-4·(-35)·(-6)
Δ = -840
Delta is less than zero, so there is no solution for the equation

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