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数学
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3x=x+1解方程
(1)3x=x+1
(2)5x-3=4x
(3)3x=6-x
人气:320 ℃ 时间:2020-02-05 11:00:17
解答
3x=x+1
3x-x=1
2x=1
x=0.5
5x-3=4x
5x-4x=3
x=3
3x=6-3
3x+x=6
4x=6
x=1.5
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