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
