Question

tìm x

\(\dfrac{3x}{4}=-\dfrac{1}{2}\)

Answer 1

`(3x)/4 =-1/2`

`=>3x=-1/2 xx4`

`=>3x=-2`

`=>x=-2/3`

Answer 2

`(3x)/4 = (-1)/2`

`3x=(-1)/2 xx 4`

`3x= (-4)/2`

`3x=-2`

`x=(-2):3`

`x=(-2)/3`

Vậy `x = -2/3`

Answer 3

\(\dfrac{3x}{4}+\dfrac{1.2}{2.2}=0\\ \dfrac{3x}{4}+\dfrac{2}{4}=0\\ 3x+2=0\\ 3x=-2\\ x=-2:3\\ x=-\dfrac{2}{3}\)

Answer 4

\(3x=-\dfrac{1}{2}\times4\)

\(3x=-\dfrac{4}{2}\)

\(3x=-2\)

\(x=-\dfrac{2}{3}\)