Question

Tim x: -4 phan 5 = 16 phan x

Giup em voi a

Answer 1

\(\frac{-4}{5}=\frac{16}{x}\)

\(\Rightarrow-4x=16.5\)

\(\Rightarrow-4x=80\)

\(\Rightarrow x=80:\left(-4\right)\)

\(\Rightarrow x=-20\)

Answer 2

\(\frac{-4}{5}=\frac{16}{x}\)

\(\Leftrightarrow x=\frac{16.5}{-4}\)

\(\Leftrightarrow x=\frac{80}{-4}\)

\(\Leftrightarrow x=-20\)

Vậy x = -20

Answer 3

-4/5=16/x

16:x=-4/5

x=16:(-4/5)

x=16.(-5/4)

x=-20

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