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数学
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解方程:12÷2X=2
能不能这样解:12÷2X=2
6X=2
X=1/3
人气:165 ℃ 时间:2020-06-20 08:18:06
解答
12÷2X=2
两边乘以2x
12=2×2x
4x=12
4x÷4=12÷4
x=3
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