\(a,\dfrac{7}{8}x=\dfrac{2}{9}-\dfrac{1}{3}\\ \dfrac{7}{8}x=\dfrac{2-3}{9}\\ \dfrac{7}{8}x=-\dfrac{1}{9}\\ x=-\dfrac{1}{9}:\dfrac{7}{8}\\ x=-\dfrac{8}{63}\\ b,14,17-x=\dfrac{1}{3}:\dfrac{2}{9}\\ 14,17-x=\dfrac{3}{2}\\ x=14,17-\dfrac{3}{2}\\ x=\dfrac{1267}{100}\)
`a)`
` 2/9 - 7/8 xx x = 1/3`
`=> 7/8 xx x =2/9 - 1/3`
`=> 7/8 xx x =2/9 - 3/9`
`=> 7/8 xx x =-1/9`
`=>x=-1/9 : 7/8`
`=>x= -1/9 xx 8/7`
`=>x= -8/63`
`b)`
`(14,17 - x) xx 2/9 = 1/3`
`=> 14,17 - x=1/3 : 2/9`
`=> 14,17 - x=1/3 xx 9/2`
`=> 14,17 - x=3/2`
`=>x= 14,17 - 3/2`
`=>x=12,67`
\(=\dfrac{7}{8}.x=\dfrac{2}{9}-\dfrac{1}{3}\Rightarrow\dfrac{7}{8}.x=-\dfrac{1}{9}\Rightarrow x=-\dfrac{1}{9}:\dfrac{7}{8}\Rightarrow x=-\dfrac{8}{36}\)
\(------------------------------\)
\(=14,17-x=\dfrac{1}{3}:\dfrac{2}{9}\Rightarrow14,17-x=\dfrac{3}{2}\Rightarrow x=14,17-\dfrac{3}{2}\Rightarrow x=\dfrac{1267}{100}\)