7/4.(2.x-3)+3/5=7/4 các bạn giúp mình nha,mình quên hết các cách làm rồi 08/07/2021 Bởi Elliana 7/4.(2.x-3)+3/5=7/4 các bạn giúp mình nha,mình quên hết các cách làm rồi
`7/4 . (2x – 3) + 3/5 = 7/4` `=> 7/4 . (2x – 3) = 7/4 – 3/5` `=> 7/4 . (2x – 3) = 23/20` `=> 2x – 3 = 23/20 : 7/4` `=> 2x – 3 = 23/35` `=> 2x= 23/35 + 3` `=> 2x = 128/35` `=> x = 128/35 : 2` `=> x = 64/35` Vậy `x = 64/35` Bình luận
`7/4 .( 2.x – 3) + 3/5 = 7/4` `7/4.(2.x – 3) = 7/4 – 3/5` `7/4.(2.x – 3) = 23/20` `(2.x – 3) = 23/20 : 7/4` `2.x – 3 = 23/35` `2.x = 23/35 + 3` `2.x = 128/35` `x = 128/35 : 2` `x = 64/35` Bình luận
`7/4 . (2x – 3) + 3/5 = 7/4`
`=> 7/4 . (2x – 3) = 7/4 – 3/5`
`=> 7/4 . (2x – 3) = 23/20`
`=> 2x – 3 = 23/20 : 7/4`
`=> 2x – 3 = 23/35`
`=> 2x= 23/35 + 3`
`=> 2x = 128/35`
`=> x = 128/35 : 2`
`=> x = 64/35`
Vậy `x = 64/35`
`7/4 .( 2.x – 3) + 3/5 = 7/4`
`7/4.(2.x – 3) = 7/4 – 3/5`
`7/4.(2.x – 3) = 23/20`
`(2.x – 3) = 23/20 : 7/4`
`2.x – 3 = 23/35`
`2.x = 23/35 + 3`
`2.x = 128/35`
`x = 128/35 : 2`
`x = 64/35`