Question

\(\dfrac{189}{-126}\)=\(\dfrac{45}{X}\)   TÌM X

Answer 1

`189/(-126)=45/x`

`=> 189xx x= -126 xx 45`

`=> 189xx x=-5670`

`=>x=-5670:189`

`=>x=-30`

vậy số cần tìm là `-30`

Answer 2

189 x X = -126 x 45 

189 x X = -5670

X = -5670 : 189

X = -30

Vậy X = -30

Answer 3

\(\dfrac{189}{-126} =\dfrac{45}{X} \)

<=> 189 x X = -126 x 45

<=> 189X = -5670

<=> X = -5670 : 189

<=> X = -30

Vậy x = -30