1.2x-4=x+0.7×6
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人气:276 ℃ 时间:2020-04-22 04:37:40
解答
1.2x-4=x+0.7×6
1.2x-4=x+4.2
1.2x-x=4+4.2
0.2x=8.2
x=8.2÷0.2
x=41
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