x-1/3[x-1/3(x-9)]=1/9(x-9)请用一元一次方程步骤解

x-1/3[x-1/3(x-9)]=1/9(x-9)请用一元一次方程步骤解
x-1/3[x-1/3(x-9)]=1/9(x-9)请用一元一次方程步骤解

x-1/3[x-1/3(x-9)]=1/9(x-9)请用一元一次方程步骤解
x-1/3[x-1/3(x-9)]=1/9(x-9)
9x-3[x-1/3(x-9)]=x-9
9x-3x+x-9=x-9
6x=-9+9
6x=0
∴x=0

x－1/3X＋1/9﹙x－9﹚=1/9(x-9)
2/3x＝0
x＝0