a) y - 6 chia 2 - ( 48 - 24 x 2 chia 6 - 3 ) = 0

=> y - 6 chia 2 - ( 48 - 48 chia 6 - 3 ) = 0 

=> y - 6 chia 2 - (  48 - 8 -3 ) = 0

= > y - 6 chia 2 - 37 = 0

=> y - 6 chia 2 = 0 + 37 

=> y - 6 chia 2 = 37

=> y -6 = 37 chia 2 

=> y - 6 = 37 / 2

=> y = 37 / 2    +  6

=> y = 49 / 2

Vậy y = 49 / 2

b) ( 7 x 13 + 8 x 13 ) chia ( 92 /3-y ) = 39

=> ( 91  +   104 ) chia ( 92/3 - y ) =39

=> 195 chia  ( 92 /3 - y ) = 39

=> 92/3 - y = 7605 

=>           y = 7605 + 92/3 

=>           y = 22907 /3

Vậy y = 22907 / 3

a) \(y-6:2-\left(48-24.2:6-3\right)=0.\)

\(\Rightarrow y-3-\left(48-8-3\right)=0\)

\(\Rightarrow y-3-37=0\)

\(\Rightarrow y=0+37+3=40\)

Vậy y = 40

b) \(\left(7.13+8.13\right):\left(9\frac{2}{3}-y\right)=39\)

\(\Rightarrow195:\left(\frac{29}{3}-y\right)=39\)

\(\Rightarrow\frac{29}{3}-y=195:39=5\)

\(\Rightarrow y=\frac{29}{3}-5=\frac{14}{3}\)

Vậy y=\(\frac{14}{3}\)

a) y - 6 : 2 - ( 48 - 24 x 2 : 6 - 3 ) = 0

y - 6 : 2 - ( 48 - 48 : 6 - 3 ) = 0

y - 6 : 2 - ( 48 - 8 - 3 ) = 0

y - 6 : 2 - 37 = 0

y - 3 = 0 + 37

y - 3 = 37

y = 37 + 3

y = 40

b) ( 7 x 13 + 8 x 13 ) : (  \(9\frac{2}{3}\) - y ) = 39

( 15 x 13 ) : ( \(9\frac{2}{3}\) - y ) = 39

195 : ( \(9\frac{2}{3}\) - y ) = 39

\(9\frac{2}{3}\) - y = 195 : 39

\(9\frac{2}{3}-y=5\)

\(y=9\frac{2}{3}-5\)

\(y=\frac{14}{3}\)

 a,  y - 6 : 2 - ( 48 - 24 x 2 : 6 - 3 ) = 0 

     y - 3 - 37 = 0 

     y - 3 = 0 + 37 

     y - 3 = 37 

     y = 37 + 3

     y = 40 

b,  ( 7 x 13 + 8 x 13 ) : ( \(9\frac{2}{3}\) - y ) = 39

     195 : ( \(\frac{29}{3}\)- y ) = 39 

     \(\frac{29}{3}\)- y = 195 : 39 

   \(\frac{29}{3}\)- y = 5

  y = \(\frac{29}{3}\)- 5 

y = \(\frac{14}{3}\)

$\dfrac{x}{3}=-\dfrac{16}{48}\\\Leftrightarrow x=\dfrac{-16.3}{48}=-1$

$\dfrac{y}{-9}=-\dfrac{16}{48}\\\Leftrightarrow y=\dfrac{-16.(-9)}{48}=3$

$\dfrac{-8}{z}=\dfrac{-16}{48}\\\Rightarrow x=\dfrac{-8.48}{-16}=24$

Vậy $x=-1,y=3,z=24$

x=-1

y=-3

z=24

A   6 x 8 = 48

 Vậy Y bằng 56 : 8, y = 7

B   Ko biết

các bạn giúp m với =(((((

a. Tính đúng y = 40

b. Tính đúng  y = 4 2 3

E = x^(4)*y^(4)+x^(5)*y^(5)+x^(6)*y^(6)+x^(7)*y^(7)+x^(8)*y^(8)+x^(9)*y^(9)+x^(10)*y^(10) tại x=-1, y=1 nha