Tìm x biết : x – [17/2- (-3/7+5/3)]=-1/3 25/08/2021 Bởi Bella Tìm x biết : x – [17/2- (-3/7+5/3)]=-1/3
`x – [ {17}/2 – (-3/7 + 5/3)] = -1/3` `⇔ x – {17}/2 – 3/7 + 5/3 = -1/3` `⇔ x = -1/3 – 5/3 + 3/7 + {17}/2` `⇔ x = {97}/{14}` Vậy `x = {97}/{14}` Bình luận
x – [17/2- (-3/7+5/3)]=-1/3⇔ x – [17/2 + 3/7 – 5/3] = -1/3 ⇔ x – 17/2 – 3/7 + 5/3 = -1/3 ⇔ x – 17/2 – 3/7 = -1/3 – 5/3 ⇔ x – 17/2 – 3/7 = -2 ⇔ x = -2 + 17/2 + 3/7 ⇔ x = 97/14 vậy x = 97/14 Bình luận
`x – [ {17}/2 – (-3/7 + 5/3)] = -1/3`
`⇔ x – {17}/2 – 3/7 + 5/3 = -1/3`
`⇔ x = -1/3 – 5/3 + 3/7 + {17}/2`
`⇔ x = {97}/{14}`
Vậy `x = {97}/{14}`
x – [17/2- (-3/7+5/3)]=-1/3
⇔ x – [17/2 + 3/7 – 5/3] = -1/3
⇔ x – 17/2 – 3/7 + 5/3 = -1/3
⇔ x – 17/2 – 3/7 = -1/3 – 5/3
⇔ x – 17/2 – 3/7 = -2
⇔ x = -2 + 17/2 + 3/7
⇔ x = 97/14
vậy x = 97/14