Question

Tìm x biết:

     (−16):(−216)=10:(9x)

Đáp số: x= ???

Answer 1

    (−16):(−216)=10:(9x)

=\(\dfrac{-16}{-216}\)=\(\dfrac{10}{9x}\)

=>(-16).9x=10.(-216)

=>9x= \(\dfrac{-2160}{-16}\)

=>9x=135

-> x=135/9=15

Vậy x=15

Answer 2

Ta có: \(\dfrac{-16}{-216}=\dfrac{10}{9x}\)

\(\Leftrightarrow\dfrac{10}{9x}=\dfrac{2}{27}\)

\(\Leftrightarrow9x=135\)

hay x=15

Vậy: x=15

Answer 3

x = 15