Question

Tìm x \(\in\) Z

\(\frac{x-1}{9}=\frac{8}{3}\)
 

Answer 1

x-1/9 = 8/3

=> (x-1).3 = 9.8

=> (x-1).3 = 72

      x-1 = 72:3

      x-1 = 24

      x    = 24+1

=>  x = 25

Answer 2

\(\frac{x-1}{9}=\frac{8}{3}\Rightarrow\frac{x-1}{9}=\frac{24}{9}\)\(\Leftrightarrow x-1=24\Rightarrow x=24+1=25\)

Vậy x=25

Answer 3

\(\frac{x-1}{9}=\frac{8}{3}\)<=> \(\frac{x-1}{9}=\frac{24}{9}\)=> x-1=24=>x=24+1=25

Answer 4

\(\frac{x-1}{9}=\frac{8}{3}\)

ta có : \(\left(x-1\right).3=9.8\)

\(3x-3=72\)

\(3x=72+3\)

\(3x=75\)

\(x=\frac{75}{3}\)

Answer 5

Để \(\frac{x-1}{9}=\frac{8}{3}\) 

<=> ( x - 1 ) . 3 = 8 . 9

=> ( x - 1 ) . 3 = 72

=> x - 1 = 72 : 3

=> x - 1 = 24

=> x = 24 + 1

=> x = 25

Vậy x = 25

Answer 6

x-1=8                                                                                                           9    3

x-1=24                                                                                                          9     9

→x-1=24→x=24+1→x=25

  Vậy x =25

          

 

Answer 7

\(\frac{x-1}{9}=\frac{8}{3}\)

\(\Rightarrow\left(x-1\right).3=9.8\)

\(\left(x-1\right).3=72\)

\(x-1=72:3\)

\(x-1=24\)

\(x=24+1\)

\(x=25\)

Vậy x = 25

Answer 8

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