当x=什么的时候,式子6/2x+5与4/x+11+x的值互为相反数
人气:214 ℃ 时间:2020-04-07 04:07:16
解答
6/2x+5与4/x+11+x的值互为相反数
则6分之2x+5+4分之x+11+x=0
两边同时乘以12,得
2(2x+5)+3(x+11)+12x=0
4x+10+3x+33+12x=0
19x=-43
x=-19分之43
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