50%x-0.875=1.625
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x:
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0.5x-0.875+0.875=1.625+0.875,
0.5x÷0.5=2.5÷0.5,
x=5;
(2)
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x=
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(3)x:
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3.6x=14×
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3.6x÷3.6=18÷3.6,
x=5.
编辑:chaxungu时间:2026-04-27 13:37:53分类:小学数学题库
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