Question

(−14):(−245)=−8:(−7x)

Answer 1

<=> 2/35 = -8:(-7x)

<=> -7x= -140

<=> x = 20

Vậy .................

Answer 2

\(\left(-14\right)\div\left(-245\right)=\left(-8\right)\div\left(-7x\right)\)

\(\Leftrightarrow\frac{2}{35}=56x\)

\(\Leftrightarrow x=980\)

Answer 3

Ta có : ( -14 ) : ( -245 ) = ( - 8 ) : ( - 7x ) 

<=> 2/35                       = ( - 8 ) : ( - 7.x ) 

<=>( - 8 ) : 2/35           = ( - 7.x)

<=> - 140                         = -7.x

<=> x                                  = 20

Vậy x = 20