\(\frac{x}{126}=\frac{-7}{24}x-\frac{6}{11}\)

\(\Rightarrow\frac{x}{126}+\frac{7}{24}x=\frac{-6}{11}\)

\(x.\frac{1}{126}+\frac{7}{24}x=\frac{-6}{11}\)

\(x.\left(\frac{1}{126}+\frac{7}{24}\right)=\frac{-6}{11}\)

\(x.\frac{151}{504}=\frac{-6}{11}\)

\(x=\frac{-6}{11}:\frac{151}{504}\)

\(x=\frac{-3024}{1661}\)

đề bài mk làm có đúng ko bn? để mk sửa lại, chẳng mk ko ra đc kết quả

CHÚC BN HỌC TỐT!!!!!
 

x/126 = -7/24 x -6/11

x/126 = 7/44

Suy ra không tìm được x.

Vậy không tìm được số x thỏa mãn đề bài , mình đã tính rồi nhưng không ra đúng với đề bài.

\(\frac{x}{126}=\frac{-7}{24}x-\frac{6}{11}\)

\(\frac{x}{126}=\frac{7}{-24}x-\frac{6}{11}\)

\(\Rightarrow\frac{x}{126}-\frac{7}{-24}x=\frac{-6}{11}\)

\(\Rightarrow x.\frac{1}{126}-\frac{7}{-24}.x=\frac{-6}{11}\)

\(\Rightarrow x.\left(\frac{1}{126}-\frac{7}{-24}\right)=\frac{-6}{11}\)

\(\Rightarrow x.\frac{151}{504}=\frac{-6}{11}\)

\(\Rightarrow x=\frac{-6}{11}:\frac{151}{504}\)

\(\Rightarrow x=\frac{-3024}{1661}\)

Vậy \(x=\frac{-3024}{1661}\)

x = 441/22 nha ban. chọn mình nha. đúng 100%

441/22

đúng 100% nha bn ^_^

Ta có: \(\dfrac{x}{126}=\dfrac{-7}{24}.\dfrac{-6}{11}\)

\(\Rightarrow\dfrac{x}{126}=\dfrac{7}{44}\)

\(\Rightarrow x=\dfrac{126.7}{44}\)

\(\Rightarrow x=\dfrac{441}{22}\)

Vậy \(x=\dfrac{441}{22}.\)

ta có x/126 =-7/24 * -6/11

suy ra x/126 =7/44

x*44=126*7

x*44 = 882

x= 882/44= 441/22

Ta có : \(\frac{x}{126}\)=\(\frac{-27}{24}.\frac{-16}{11}\)

=> \(\frac{x}{126}=\frac{7}{44}\)

=> \(x=\frac{126.7}{44}\)

=> \(x=\frac{441}{22}\)

Vậy : \(x=\frac{441}{22}\)

a) x  -1/4 = -3/8 . 2/5

    x - 1/4 = -3/20

    x        = -3/20 + 1/4

    x        = 1/10

b) x/126 = -7/24 . -6/11

    x/126 = 7/44

\(\Rightarrow\)x = rỗng

a, x- 1/4 = (-3/20) 
   x= 1/10

b, x/126 = (7/44)
    x = 441/22

\(\frac{x}{126}=\frac{-7}{24}.\frac{-6}{11}\)

\(\Leftrightarrow\frac{x}{126}=\frac{7}{44}\)

\(\Leftrightarrow x.44=126.7\)

\(\Leftrightarrow x.44=882\)

\(\Leftrightarrow x=882:44\)

\(\Leftrightarrow x=\frac{441}{22}\)

 x126=−724×−611

⇔x126=42264

⇔x126=744

⇔x=126×744

⇔x=126×744

⇔x=44122

x/126 = -7/24 x -6/11

x/126 = 7/44

x = 126 x 7/44

x= 441/22

441/22 nhé

x/126=7/43

x=20,5

\(\frac{X}{126}=\frac{-7}{24}.\frac{-6}{11}\)

\(\frac{X}{126}=\frac{42}{264}\)

\(\frac{X}{126}=\frac{7}{44}\)

\(X=\frac{7}{44}.126=\frac{882}{44}=\frac{441}{22}\)

Vậy x = 441/22

\(\frac{x}{126}=\frac{-7}{24}.\frac{-6}{11}\)

\(\Rightarrow\frac{x}{126}=\frac{7}{44}\)

\(\Rightarrow x.44=126.7\)

\(\Rightarrow x.44=882\)

\(\Rightarrow x=882:44\)

\(\Rightarrow x=\frac{441}{22}\)