52 x ( x:78)=3880 X x 3/4 + 4/5 = 1 và 7/10 17/07/2021 Bởi Hadley 52 x ( x:78)=3880 X x 3/4 + 4/5 = 1 và 7/10
`52 . (x : 78) = 3880` `=> x : 78 = 3880 : 52` `=> x : 78 = 970/13` `=> x = 970/13 . 78` `=> x = 5820` Vậy `x = 5820` — `x . 3/4 + 4/5 = 1 7/10` `=> x . 3/4 + 4/5 = 17/10` `=> x . 3/4 = 17/10 – 4/5` `=> x . 3/4 = 9/10` `=> x = 9/10 : 3/4` `=> x = 6/5` Vậy `x = 6/5` Bình luận
`+)` `52xx(x:78)=3880` `x:78=3880:52` `x:78=970/13` `x=970/13xx78` `x=5820` `+)` `x xx3/4+4/5=1 7/10` `x xx3/4=17/10-4/5` `x xx3/4=9/10` `x=9/10:3/4` `x=6/5` Bình luận
`52 . (x : 78) = 3880`
`=> x : 78 = 3880 : 52`
`=> x : 78 = 970/13`
`=> x = 970/13 . 78`
`=> x = 5820`
Vậy `x = 5820`
—
`x . 3/4 + 4/5 = 1 7/10`
`=> x . 3/4 + 4/5 = 17/10`
`=> x . 3/4 = 17/10 – 4/5`
`=> x . 3/4 = 9/10`
`=> x = 9/10 : 3/4`
`=> x = 6/5`
Vậy `x = 6/5`
`+)`
`52xx(x:78)=3880`
`x:78=3880:52`
`x:78=970/13`
`x=970/13xx78`
`x=5820`
`+)`
`x xx3/4+4/5=1 7/10`
`x xx3/4=17/10-4/5`
`x xx3/4=9/10`
`x=9/10:3/4`
`x=6/5`