5y-4(3y-2)=-20

2007-10-04 4:47 am
5y-4(3y-2)=-20
y=?

回答 (3)

2007-10-04 4:50 am
✔ 最佳答案
5y-4(3y-2)=-20
5y-12y+8=-20
-7y=-28
y=4//
2007-10-04 5:55 am
5y - 4(3y - 2) = -20
5y - 12y + 8 = -20
-7y = -28
y = 4
2007-10-04 5:01 am
5y-4(3y-2)=-20
5y-12y+8=20
-7y=12
y=12/-7


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