x+
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(
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x=22.4;
(2)(
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x=
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(3)
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4-12x=1,
4-12x+12x=1+12x,
1+12x=4,
1+12x-1=4-1,
12x=3,
12x÷12=3÷12,
x=
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编辑:chaxungu时间:2026-04-27 13:38:29分类:小学数学题库
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