-2/3-1/3.2x-5=3/2 “/”là phần nha giúp mik nha mọi người 02/10/2021 Bởi Madelyn -2/3-1/3.2x-5=3/2 “/”là phần nha giúp mik nha mọi người
`-2/3 – 1/3 . 2x – 5 = 3/2` `-1 – 2x – 5 = 3/2` `2x – 5 = -1 – 3/2` `2x – 5 = -2/2 – 3/2` `2x – 5 = -5/2` `2x = -5/2 + 5` `2x = -5/2 + 10/2` `2x = 5/2` `x = 5/2 : 2` `x = 5/2 . 1/2` `x = 5/4.` Bình luận
`(-2)/3 – 1/3.2x -5 = 3/2` `(-2)/3 – 1/6x-5 = 3/2` `⇔ 1/6 x-5 =(-2)/3 – 3/2` `⇔ 1/6x – 5 = (-4)/6 – 9/6` `⇔1/6x – 5 = (-13)/6` `⇔ 1/6x = (-13)/6 + 5` `⇔ 1/6x = 17/6` `⇔x = 17/6 : 1/6` `⇔x = 17` Bình luận
`-2/3 – 1/3 . 2x – 5 = 3/2`
`-1 – 2x – 5 = 3/2`
`2x – 5 = -1 – 3/2`
`2x – 5 = -2/2 – 3/2`
`2x – 5 = -5/2`
`2x = -5/2 + 5`
`2x = -5/2 + 10/2`
`2x = 5/2`
`x = 5/2 : 2`
`x = 5/2 . 1/2`
`x = 5/4.`
`(-2)/3 – 1/3.2x -5 = 3/2`
`(-2)/3 – 1/6x-5 = 3/2`
`⇔ 1/6 x-5 =(-2)/3 – 3/2`
`⇔ 1/6x – 5 = (-4)/6 – 9/6`
`⇔1/6x – 5 = (-13)/6`
`⇔ 1/6x = (-13)/6 + 5`
`⇔ 1/6x = 17/6`
`⇔x = 17/6 : 1/6`
`⇔x = 17`