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4*x*a=(a+10)*x=(a-26)*3x
人气:473 ℃ 时间:2020-10-01 21:06:15
解答
解∵4*x*a=(a+10)*x=(a-26)*3x
=>4ax=ax+10x且4ax=3ax-78x
=>3ax=10x且ax=-78x
=>244x=0
=>x=0
=>ax=0
=>a=0
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