4【2x-1]-2[10x+1]=3[2x+1]-120.3x+0.7[200-x]=108
<p>问题：4【2x-1]-2=3-120.3x+0.7=108<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">邓旭玥的回答：<div class="content-b">网友采纳 4【2x-1]-2=3-12 8x-4-20x-2=6x+3-12 8x-20x-6x=4+2-12 -18x=-6 x=1/3 0.3x+0.7=108 0.3x+140-0.7x=108 0.3x-0.7x=108-140 -0.4x=-32 x=80
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