Question

Tim x

\(\left(-3,25\right):\left(\frac{-1}{3}x\right)=\left(-2\frac{1}{3}\right):\left(-0,25\right)\)

Answer 1

=> -3,25;(-1/3x)=28/3

=> -1/3x=28/3*(-3,25)

=> -1/3x=-91/3

=>x=-91/3:(-1/3)

=>  x=91

  vậy x=91

     study well

   k nha 

 mk xin cảm ơn mọi ng nhiều

Answer 2

(-3,25) : (\(-\frac{1}{3}x\)) = (\(-2\frac{1}{3}\)) : (-0,25)

<=> \(-\frac{1}{3}x\)= \(-\frac{39}{112}\)

<=>x = \(\frac{117}{112}\)

Answer 3

\(\left(3,25\right).\left(-3x\right)=\left(-\frac{5}{3}\right).\left(-4\right)\)

\(\left(-3,25\right).\left(-3x\right)=\frac{20}{3}\)

\(\left(-3x\right)=\frac{20}{3}:\left(-3,25\right)\)

\(\left(-3x\right)=-\frac{80}{39}\)

\(x=-\frac{80}{39}:3\)

\(x=-\frac{80}{117}\)

Answer 4

\(-3,25:\left(-\frac{1}{3}x\right)=\left(-2\frac{1}{3}\right):\left(-0,25\right)\)

\(-\frac{13}{4}:\left(-\frac{1}{3}x\right)=\left(-\frac{7}{3}\right):-\frac{1}{4}\)

\(-\frac{13}{4}:\left(-\frac{1}{3}x\right)=\left(-\frac{7}{3}.-4\right)\)

\(-\frac{13}{4}:\left(-\frac{1}{3}x\right)=-\frac{28}{3}\)

               \(\left(-\frac{1}{3}x\right)=-\frac{13}{4}:-\frac{28}{3}\)

                  \(\left(-\frac{1}{3}x\right)=\left(-\frac{13}{4}\right).\left(-\frac{3}{28}\right)\)

                    \(-\frac{1}{3}x=\frac{39}{112}\)

                               \(x=\frac{39}{112}:-\frac{1}{3}\)

                                \(x=\frac{39}{112}.-3\)

                                    \(x=-\frac{117}{112}\)

                        Vậy \(x=-\frac{117}{112}\)

Chúc bạn học tốt !!!