Làm giúp mik nha. Question Làm giúp mik nha. in progress 0 Môn Toán Eirian 4 years 2020-10-28T14:42:46+00:00 2020-10-28T14:42:46+00:00 2 Answers 84 views 0
Answers ( )
`+`
`x + 28 : 7 = 101`
`x + 28/7 = 101`
`x = 101 : 28/7`
`x = 101/4`
`+`
`2x – 7 = 53`
`2x = 53 + 7 = 60`
`x = 60 : 2 = 30`
`+`
`404 : (2x – 9) = 4`
`2x – 9 = 404 : 4 = 101`
`2x = 101 + 9 = 110`
`x = 110 : 2`
`x = 55`
`+`
`119 : (30 – x) = 17`
`30 – x = 119 : 17`
`30 – x = 7`
`x = 30 – 7`
`x = 23`
– Answered by Meett1605
1 là 97
2 là 69
3 là 55
4 là 502
5 là 23