4/9x-3/5=1 2/3 5-(1/3x+5/6)=-0,5 (x+11/2).7/3-3=0,5 4-(1/2x+3/4)=-1,5 ai nhanh nhất em cho hay nhất ạ 13/08/2021 Bởi Adeline 4/9x-3/5=1 2/3 5-(1/3x+5/6)=-0,5 (x+11/2).7/3-3=0,5 4-(1/2x+3/4)=-1,5 ai nhanh nhất em cho hay nhất ạ
Đáp án: Giải thích các bước giải: `(4x)/9 – 3/5 = 1 2/3` `<=> (4x)/9 – 3/5 = 5/3` `<=> (60x – 81)/135 = 225/135` `<=> (60x-81-225)/135 = 0` `<=> 60x – 81-225 =0` `<=> 60x = 306` `<=> x=51/50` Vậy ` x=51/50` `5-(1/3 x +5/6)=-5` `<=> x/3 + 5/6 = 10` `<=> (2x)/6 + 5/6 = 60/6` `<=> 2x + 5 =60` `<=> 2x= 55``<=> x=55/2` Vậy `x=55/2` `(x+11/2 ).7/3 -3=0,5` `<=> (x+11/2 ).7/3 = 7/2` `<=> x+11/2 = 3/2` `<=> x=3/2 – 11/2` `<=> x=-4` Vậy `x=-4` `4-(1/2 x +3/4 ) =-1,5` `<=> x/2 + 3/4 = 11/2` `<=> x/2 = 19/4` `<=> (2x)/4 = 19/4` `<=> 2x=19` `<=> x=19/2` Vậy `x=19/2` xin ctlhn ạ Bình luận
`4/9x-3/5=1 2/3` `->` `4/9x=34/15` `->` `x=51/10` Vậy `:` `x=51/10` `_______________` `5-(1/3x+5/6)=-0,5` `->` `1/3x+5/6=11/2` `->` `1/3x=14/3` `->` `x=14` Vậy `:` `x=14` `_______________` `(x+11/2).{7}/3-3=0,5` `->` `(x+11/2).{7}/3=7/2` `->` `x+11/2=3/2` `->` `x=-4` Vậy `:` `x=-4` `_______________` `4-(1/2x+3/4)=-1,5` `->` `1/2x+3/4=11/2` `->` `1/2x=19/4` `->` `x=19/2` Vậy `:` `x=19/2` Bình luận
Đáp án:
Giải thích các bước giải:
`(4x)/9 – 3/5 = 1 2/3`
`<=> (4x)/9 – 3/5 = 5/3`
`<=> (60x – 81)/135 = 225/135`
`<=> (60x-81-225)/135 = 0`
`<=> 60x – 81-225 =0`
`<=> 60x = 306`
`<=> x=51/50`
Vậy ` x=51/50`
`5-(1/3 x +5/6)=-5`
`<=> x/3 + 5/6 = 10`
`<=> (2x)/6 + 5/6 = 60/6`
`<=> 2x + 5 =60`
`<=> 2x= 55`
`<=> x=55/2`
Vậy `x=55/2`
`(x+11/2 ).7/3 -3=0,5`
`<=> (x+11/2 ).7/3 = 7/2`
`<=> x+11/2 = 3/2`
`<=> x=3/2 – 11/2`
`<=> x=-4`
Vậy `x=-4`
`4-(1/2 x +3/4 ) =-1,5`
`<=> x/2 + 3/4 = 11/2`
`<=> x/2 = 19/4`
`<=> (2x)/4 = 19/4`
`<=> 2x=19`
`<=> x=19/2`
Vậy `x=19/2`
xin ctlhn ạ
`4/9x-3/5=1 2/3`
`->` `4/9x=34/15`
`->` `x=51/10`
Vậy `:` `x=51/10`
`_______________`
`5-(1/3x+5/6)=-0,5`
`->` `1/3x+5/6=11/2`
`->` `1/3x=14/3`
`->` `x=14`
Vậy `:` `x=14`
`_______________`
`(x+11/2).{7}/3-3=0,5`
`->` `(x+11/2).{7}/3=7/2`
`->` `x+11/2=3/2`
`->` `x=-4`
Vậy `:` `x=-4`
`_______________`
`4-(1/2x+3/4)=-1,5`
`->` `1/2x+3/4=11/2`
`->` `1/2x=19/4`
`->` `x=19/2`
Vậy `:` `x=19/2`