Respuesta :

minervabellacrucio

Answer:

[tex]r= -\frac{10}{11}[/tex]

Step-by-step explanation:

[tex]2r+9r+10=0\\[/tex]

combine 2r and 9r

[tex]11r+10=0[/tex]

subtract 10 on both sides

[tex]11r=-10[/tex]

[tex]r= -\frac{10}{11}[/tex]

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