Đáp án:
Giải thích các bước giải:
`5x(x+1/2)-1/3`x`(x-2)=x`
`5x+5(1/2)-1/3.(x-2)=x`
`5x+5/2-1/3x-1/3.(-2)=x`
`5x+5/2-x/3+2(1/3)=x`
`5x+5/2-x+3+2/3=x`
$\frac{5x.3}{3}$ `-x/3+5/2+2/3=x`
$\frac{5x.3-x}{3}$ `+5/2+2/3=x`
$\frac{5x.3-x+2}{3}$ `+5/2=x`
$\frac{14x+2}{3}$ `+5/2=x`
$\frac{2(7x)+2(1)}{3}$`+5/2=x`
$\frac{2(7x+1)}{3}$`. 2/2+5/2. 3/3=x`
$\frac{2(7x+1).2}{6}$`+5/2 . 3/3=x`
$\frac{(2(7x)+2.1).2+5.3}{6}$`=x`
$\frac{28x+2.2+5.3}{6}$`=x`
$\frac{28x+19}{6}$`=x`
$\frac{28x-+19}{6}$ `−x=0`
$\frac{28x-+19}{6}$ `−x.` `6/6=0`
$\frac{28x+19-x.6}{6}$ `=0`
$\frac{22x+19}{6}=0$
`x=-19/22`
Vậy `x=-19/22`
