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(3X-42)除以6 X是几时,结果就等于10
人气:189 ℃ 时间:2020-04-08 08:24:17
解答
(3x - 42) ÷ 6 = 10
3x - 42 = 10 × 6
3x - 42 = 60
3x = 60 + 42
3x = 102
x = 102 ÷ 3
x = 34
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