1/3(9y-3)-2(y-1)=?|-7/9|÷(2/3-1/5)-1/3*(-4)二次方

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1/3(9y-3)-2(y-1)=?|-7/9|÷(2/3-1/5)-1/3*(-4)二次方1/3(9y-3)-2(y-1)=?|-7/9|÷(2/3-1/5)-1/3*(-4)二次方1/3(9y-3

1/3(9y-3)-2(y-1)=?|-7/9|÷(2/3-1/5)-1/3*(-4)二次方
1/3(9y-3)-2(y-1)=?
|-7/9|÷(2/3-1/5)-1/3*(-4)二次方

1/3(9y-3)-2(y-1)=?|-7/9|÷(2/3-1/5)-1/3*(-4)二次方
=1/3(9y-3)-2y+2
=3y-1-2y+2
=y+1
=7/9除以7/15-1/3*16
=5-16/3
= -1/3