\(\frac{1}{2}\left(\frac{4}{9}-x\right)-\frac{3}{2}\left(16-x\right)+\frac{1}{2}\left(5x+10\right)=0\)

\(\Leftrightarrow\frac{2}{9}-\frac{1}{2}x-24+\frac{3}{2}x+\frac{5}{2}x+5=0\)

\(\Leftrightarrow-\frac{169}{9}=\frac{7}{2}x\Leftrightarrow x=-\frac{338}{63}\)

Sai thì thông cảm cho mk nha

\(\dfrac{2}{30}\)

`(1 xx 2 xx 3 xx 4)/(3 xx 4 xx 5 xx 6)`

`= (1 xx 2)/(5 xx 6)`

`= 2/12`

`= 1/6`

Bổ sung:

`(1 xx 2)/(5 xx 6)`

`= 2/30`

`= 1/15`

tham khảo:

99/100

0,25 × X - 27/8 × X = 3/4

X × ( 0,25 - 27/8 ) = 0,75

X × ( -25/8 ) = 0,75

X = 0,75 ÷ ( -25/8 )

X = -6/25

6 + x/3 = 5/9

=> x/3 = 5/9 - 6

x/3 = -49/9

=> x = -49/3

=.= hk tốt!!

\(6+\frac{x}{3}=\frac{5}{9}\)

=> \(\frac{x}{3}=\frac{5}{9}-6\)

=> \(\frac{x}{3}=\frac{-49}{9}\)

=> \(x=\frac{-49}{9}\times3\)

=> \(x=\frac{-49}{3}\)

Study well ! >_<

Ý mình là 6+x phần 3

x ⩽ 3

=> x ∈ {...; -2; -1; 0; 1; 2; 3}

\(\frac{x-12}{3}=\frac{x+1}{4}\)

=>(x-12).4=(x+1)*3

    4x-48=3x+3

    4x-3x=48+3

    x=51

(x-12)/3=(x+1)/4

(x-12)*4=(x+1)*3

x*4-12*4=x*3+1*3

4x-48=3x+3

4x-3x=3+48

x=51

-=> 4 .(x\(-\)12) = 3 .(x+1)

=.>4x\(-\)48      = 3x+3

=>4x\(-\)3x       = 48 + 3

=.> x                  = 51

Vậy x =51

\(\Rightarrow2-4x=6-3x\\ \Rightarrow x=-4\)

\(\dfrac{2x-1}{3}=\dfrac{2-x}{-2}\)

\(\Rightarrow-2\left(2x-1\right)=3\left(2-x\right)\)

\(\Rightarrow-4x+2=6-3x\Rightarrow x=-4\)

Có đúng hông dậy mọi người