Question

Tìm x a, 5/8 -x = 7/6 b, 1/6 + 1/5 :x =-7 /18

Answer 1

` 5/8 -x = 7/6`

`=> x= 5/8 -7/6`

`=>x= 30/48 - 56/48`

`=>x=-26/48`

`=>x=-13/24`

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`1/6 + 1/5 :x =-7 /18`

`=>  1/5 :x =-7 /18 -1/6`

`=>  1/5 :x =-7 /18- 3/18`

`=>  1/5 :x =-5/9`

`=>x= 1/5 : (-5/9)`

`=>x= 1/5 xx (-9/5)`

`=>x=-9/25`

Answer 2

a: x=5/8-7/6=15/24-28/24=-13/24

b: =>1/5:x=-7/18-1/6=-7/18-3/18=-10/18=-5/9

=>x=-1/5:5/9=-9/25

Answer 3

\(\dfrac{5}{8}-x=\dfrac{7}{6}\\ x=\dfrac{5}{8}-\dfrac{7}{6}\\ x=\dfrac{15}{24}-\dfrac{28}{24}\\ x=-\dfrac{7}{24}\)

 

\(\dfrac{1}{6}+\dfrac{1}{5}:x=-\dfrac{7}{18}\\ \dfrac{1}{5}:x=-\dfrac{7}{18}-\dfrac{1}{6}\\ \dfrac{1}{5}:x=-\dfrac{7}{18}-\dfrac{3}{18}\\ \dfrac{1}{5}:x=-\dfrac{5}{9}\\ x=\dfrac{1}{5}:\left(-\dfrac{5}{9}\right)\\ x=-\dfrac{9}{25}\)

Answer 4

\(a,\dfrac{5}{8}-x=\dfrac{7}{6}\\ x=\dfrac{5}{8}-\dfrac{7}{6}\\ x=-\dfrac{13}{24}\\ b,\dfrac{1}{6}+\dfrac{1}{5}:x=-\dfrac{7}{18}\\ \dfrac{1}{5}:x=-\dfrac{7}{18}-\dfrac{1}{6}\\ \dfrac{1}{5}:x=-\dfrac{5}{9}\\ x=\dfrac{1}{5}:-\dfrac{5}{9}\\ x=-\dfrac{9}{25}.\)