x-1-x/3﹦x+2/6-1

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x-1-x/3﹦x+2/6-1x-1-x/3﹦x+2/6-1x-1-x/3﹦x+2/6-1x-1-x/3﹦x+2/6-1两边乘66x-2(1-x)=x+2-68x-2=x-48x-x=2-47x=-2

x-1-x/3﹦x+2/6-1
x-1-x/3﹦x+2/6-1

x-1-x/3﹦x+2/6-1
x-1-x/3﹦x+2/6-1 两边乘6
6x-2(1-x)=x+2-6
8x-2=x-4
8x-x=2-4
7x=-2
x=-2/7
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两边同时乘以3. 得: 3x-3-x=3x+1-3 消项3x得: -3-x=-2 移向得: x=-3+2= --1

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