alexmrosa alexmrosa

25-06-2020
Mathematics

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Given that 9 x − 4 y = 20 Find y when x = − 2 Give your answer as an improper fraction in its simplest form

Respuesta :

Alfpfeu Alfpfeu

25-06-2020

Answer:

[tex]\boxed{\df\ \dfrac{-19}{2}}[/tex]

Step-by-step explanation:

Hi,

x=-2

it gives

9*(-2)-4y=20

<=> -18-4y=20

<=> 18-18-4y=20+18=38

<=> -4y=38

<=> y = -38/4=-19/2

hope this helps

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