Question

B2:

a, \(\dfrac{4}{5}+\dfrac{7}{6}:x=\dfrac{1}{6}\)

b, \(\dfrac{2}{9}-\dfrac{7}{8}.x=1\)

c, \(\dfrac{x-2}{3}=\dfrac{x+1}{4}\)

Answer 1

a: =>7/6:x=1/6-4/5=5/30-24/30=-19/30

=>x=-7/6x30/19=-210/19x6=-35/19

b: =>7/8x=-7/9

=>x=-9/8

c: =>4x-8=3x+3

=>x=11

Answer 2

`4/5 + 7/6 : x = 1/6`

`7/6 : x =1/6 - 4/5`

`7/6 : x = 5/30 - 24/30`

`7/6 : x  =-19/30`

`x=7/6 : (-19)/30`

`x=7/6 . (-30)/19`

`x=-35/19`

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`2/9 - 7/8 . x = 1`

`7/8 x = 2/9 - 1`

`7/8 x = 2/9 - 9/9`

`7/8 x = -7/9`

`x=7/8:(-7)/9`

`x=7/8 . (-9)/7`

`x=-9/8`

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`(x-2)/3 = (x+1)/4`

`(x-2).4=(x+1).3`

`4x-8=3x+3`

`(4x-3x)=8+3`

`x=11`