3ax-b=0(a不等于0)3-mx=nx+4(m+n不等于0)(a-2)x-a-2=0(a不等于0)
<p>问题：3ax-b=0(a不等于0)3-mx=nx+4(m+n不等于0)(a-2)x-a-2=0(a不等于0)<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">李红芹的回答：<div class="content-b">网友采纳 解（1）3ax-b=0(a不等于0) 3ax=b x=b/3a 解（2）3-mx=nx+4(m+n不等于0) (m+n)x=-1 x=-1/(m+n) 解（3）(a-2)x-a-2=0(a不等于0) (a-2)x=a+2 x=(a+2)/(a-2)
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