Question

[ ( 8.x-12 ):4 ] . 27= 36

Answer 1

\(\left[\left(8x-12\right):4\right].27=36\)

\(\Rightarrow\left[\left(8x-12\right):4\right]=36:27=\dfrac{4}{3}\)

\(\Rightarrow\left(8x-12\right)=\dfrac{4}{3}.4=\dfrac{16}{3}\)

\(\Rightarrow8x=\dfrac{16}{3}+12=\dfrac{52}{3}\)

\(\Rightarrow x=\dfrac{52}{3}:8=\dfrac{13}{6}\)

Vậy........

Answer 2

(8.x-12):4=\(\dfrac{4}{3}\)

8x-12=\(\dfrac{16}{3}\)

8x=\(\dfrac{52}{3}\)

x=\(\dfrac{13}{6}\)

Answer 3

Chúc bạ học tốt

Answer 4

\(\left[\left(8x-14\right):4\right].27=36\)

\(\Leftrightarrow\left[\left(8x-14\right):4\right]=36:27\)

\(\Leftrightarrow\left[\left(8x-14\right):4\right]=\dfrac{4}{3}\)

\(\Leftrightarrow8x-14=\dfrac{4}{3}.4\)

\(\Leftrightarrow8x-14=\dfrac{16}{3}\)

\(\Leftrightarrow8x=\dfrac{16}{3}+14\)

\(\Leftrightarrow8x=\dfrac{58}{3}\)

\(\Leftrightarrow x=\dfrac{29}{12}\)

Answer 5

[ ( 8 . x - 12 ) : 4 ] . 27 = 36

[ ( 8 . x - 12 ) : 4 ] = 36 : 27

[ ( 8 . x - 12 ) : 4 ] = 4/3

( 8 . x - 12 ) = 4/3 . 4

( 8 . x - 12 ) = 16/3

8 . x = 16/3 + 12

8 . x = 52/3

x = 52/3 : 8

x = 13/6

Vậy x = 13/6

Answer 6

[(8x - 12) : 4] . 27 = 36

=> (8x - 12) : 4 = \(\dfrac{36}{27}=\dfrac{4}{3}\)

=> 8x - 12 = \(\dfrac{4}{3}.4=\dfrac{16}{3}\)

=> 8x = \(\dfrac{16}{3}+12=\dfrac{16}{3}+\dfrac{36}{3}=\dfrac{52}{3}\)

=> x = \(\dfrac{52}{3}:8=\dfrac{52}{3}.\dfrac{1}{8}=\dfrac{52}{24}\)\(=\dfrac{13}{6}\)