试用简便方法、1/2[x-1/2(x-1)+1]=2/3(x-1)
1个回答
展开全部
1/2[x-1/2(x-1)+1]=2/3(x-1)
1/2[(x-1)+1-1/2(x-1)+1]=2/3(x-1)
1/2[(x-1)-1/2(x-1)+2]=2/3(x-1)
1/2[1/2(x-1)+2]=2/3(x-1)
1/4(x-1)+1=2/3(x-1)
(2/3-1/4)(x-1)=1
5/12(x-1)=1
x-1=12/5
x=1+12/5=17/5
1/2[(x-1)+1-1/2(x-1)+1]=2/3(x-1)
1/2[(x-1)-1/2(x-1)+2]=2/3(x-1)
1/2[1/2(x-1)+2]=2/3(x-1)
1/4(x-1)+1=2/3(x-1)
(2/3-1/4)(x-1)=1
5/12(x-1)=1
x-1=12/5
x=1+12/5=17/5
本回答由网友推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
