Answer:
[tex]x = - \frac{4}{5} \\ [/tex]
Step-by-step explanation:
In order to solve this question we use ratio and proportion
From the question
y = 20 when x = 8
So we have
If y is 20 when x is 8
Then when y is - 2 x is
[tex] \frac{ - 2 \times 8}{20} = - \frac{16}{20} = - \frac{4}{5} \\ [/tex]
We have the final answer as
[tex]x = - \frac{4}{5} \\ [/tex]
Hope this helps you
