(1)87.5%x=7/16 (2)x-60%x=2/9 (3)x÷80%=15/16
人气:376 ℃ 时间:2020-04-15 19:37:30
解答
(1)x=1/2
(2)x=5/9
(3)x=3/4可以麻烦你点时间写过程吗。0 0拜托啦
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