Question

Tính

Answer 1

\(2x=-\dfrac{5}{3}-\dfrac{1}{2}\\ 2x=\dfrac{-5.2-1.3}{6}\\ 2x=\dfrac{-13}{6}\\ x=-\dfrac{13}{6}:2\\ x=-\dfrac{13}{12}\)

Answer 2

2x + 1/2 = -5/3

2x          = -5/3 - 1/2

2x          = -10/6 - 3/6

2x          = -13/6

  x          = -13/6 : 2

  x          = -13/6 x 1/2

  x          = -13/12

Answer 3

`-3x -3/4 = 6/5`

`-3x = 6/5 + 3/4`

`-3x = 24/20 + 15/20`

`-3x = 39/20`

`x = 39/20 : (-3)`

`x=39/20 xx (-1)/3`

`x= (-13)/20`

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`2x - 3/4 = -5/8`

`2x = -5/8 + 3/4`

`2x = -5/8 + 6/8`

`2x = 1/8`

`x=1/8:2`

`x=1/8 xx 1/2`

`x=1/16`

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`-2/3 x + 2 = 3/4`

`-2/3 x = 3/4 - 2`

`-2/3x = 3/4 - 8/4`

`-2/3 x = -5/4`

`x= (-5)/4 : (-2)/3`

`x = (-5)/4 xx (-3)/2`

`x= 15/8`

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`3/4x - 5/2 = 4/3`

`3/4x = 4/3 + 5/2`

`3/4 x = 8/6 + 15/6`

`3/4 x = 23/6`

`x= 23/6 : 3/4`

`x=23/6 xx 4/3`

`x= 46/9`