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数学
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x-0.7x=64.8求x
人气:436 ℃ 时间:2020-04-02 10:25:50
解答
0.3X=64.8
x=216
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当x=()时,(35-7x)×8=0
x-0.7x=4.8 x=?
x的平方+7x-8=0则x-8/x
请解:x²+7x-8=0 x=?
2(x-8)-0.7x+2=3.81
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