来自杜延春的问题
3.2+x=4.6x-2.08=5.761.2x=0.843x+0.5x=4.24x-2.16=1.2x-0.2x=162x-4*2.5=3.6x除以5.4=0.26
3.2+x=4.6x-2.08=5.761.2x=0.843x+0.5x=4.24x-2.16=1.2x-0.2x=162x-4*2.5=3.6x除以5.4=0.26
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2020-12-08 17:48