\(\dfrac{x}{3}-\dfrac{1}{2}.\dfrac{1}{3}=-\dfrac{5}{6}\\ \dfrac{x}{3}-\dfrac{1}{6}=-\dfrac{5}{6}\\ \dfrac{x}{3}=-\dfrac{5}{6}+\dfrac{1}{6}\\ \dfrac{x}{3}=\dfrac{-4}{6}\\ \Rightarrow x=-2\)
\(0,5+1,5:x=1\dfrac{1}{2}.0,5\\ 0,5+1,5:x=0,75\\ 1,5:x=0,25\\ x=6\)
x/3 - 1/2 . 1/3 = -5/6
x/3 - 1/6 = -5/6
x/3 = -5/6 + 1/6
x/3 = 4/6
x/3 = 2/3
=> x = 2
0,5 + 1,5 : x = 1,5 . 0,5
0,5 + 1,5 : x = 0,75
1,5 : x = 0,75 - 0,5
1,5 : x = 0,25
x = 0,25 : 1,5
x = 1/4 : 3/2
x = 1/4 . 2/3
x = 1/6
`x/3 - 1/2 . 1/3 = (-5)/6`
`x/3 - 1/6 = (-5)/6`
`x/3 = (-5)/6 + 1/6`
`x/3 = (-4)/6`
`x/3 = (-2)/3`
`x=(-2)/3 xx 3`
`x=(-2)`
Vây `x = -2`
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`0,5 + 1,5 : x = 1 1/2 . 0,5`
`0,5 + 1,5 : x = 3/2 . 0,5`
`0,5 + 1,5 : x = 3/2 . 1/2`
`0,5 + 1,5 : x = 3/4`
`1,5 : x =3/4 -0,5`
`1,5 : x = 3/4 - 1/2`
`1/5:x=1/4`
`x=1/5:1/4`
`x=1/5 xx 4`
`x=4/5`
Vậy `x = 4/5`
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