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数学
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一、解方程.5x+0.1x=50+6.1 20
一、解方程.
5x+0.1x=50+6.1 20=5x一3x 0.5x+1.5x=15.6 16x+4一9x=25
人气:441 ℃ 时间:2020-02-20 14:55:49
解答
5.1x=56.1 x=11 20=2x x=10 2x=15.6 x=7.8 7x=21 x=3 亲,求好评么么哒
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19x-8x=55 2×(7x-4x)=18 6x+8x=1.4×3 5x+0.1x=50+6.1 7.2x-3.6x=9×0.4 20=5x-3X.
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