`[-2]/3=18/x`
`-2x=18.3`
`-2x=54`
`x=54:(-2)=-27`
\(\dfrac{-2}{3}=\dfrac{18}{x}\)
\(\Leftrightarrow x=\dfrac{18.3}{-2}=-27\)
Vì \(\dfrac{-2}{3}=\dfrac{18}{x}\) nên -2x = 3.18
-2x = 54
x = 54:(-2)
x = -27
-2/3=18/x
Vậy -2*x=18*3
-2*x=54
x=54/-2
x=-27