2x-1/2[x-1/2(x-1)]=2/3(x-1)

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相关建议 2011-01-08

2x-1/2[x-1/2(x-1)]=2/3(x-1)
2x-1/2x+1/4x-1/4=2/3x-2/3
乘12
24x-6x+3x-3=8x-8
24x-6x+3x-8x=-8+3
13x=-5
x=-5/13

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X-1\/2[X-1\/2(x-1)]=2\/3(x-1)
解：X-1\/2[X-X\/2+1\/2]=2X\/3-2\/3 X-X\/2+X\/4-1\/4=2X\/3-2\/3 4X\/4-2X\/4+X\/4-1\/4=2X\/3-2\/3 3X\/4-1\/4=2X\/3-2\/3 3X\/4-2X\/3=1\/4-2\/3 9X-8X=3-8 X=-5

解方程2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)
解：2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)2x-1\/2[x-1\/2x+1\/2)]=2\/3(x-1)2x-1\/2(1\/2x+1\/2)=2\/3(x-1)2x-1\/4x-1\/4=2\/3(x-1)两边同时乘以12，得 24x-3x-3=8(x-1)21x-3=8x-8 21x-8x=-8+3 13x=-5 x=-5\/13 ...

2x-1\/2[x-1\/2(x-1)=2\/3(x-1)怎么解
解：由题意可得：等式两边同时乘以6 12x-3(x-x\/2+1\/2)=4(x-1)12x-3x\/2-3\/2=4x-4 12x-4x-3x\/2=3\/2-4 13x\/2=-5\/2 x=-5\/13

2X-1\/2((X-1\/2(X-1)))=2\/3(X-1)
2X-1\/2[X-1\/2(X-1)]=2\/3(X-1)12x-3[X-1\/2(X-1)]=4(x-1)12x-3x+1.5x-1.5-4x+4=0 6.5x=-2.5 x=-5\/13

2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)怎么算
你好，1075328645 2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)2x-1\/2[x-1\/2x+1\/2]=2\/3x-2\/3 2x-1\/2[1\/2x+1\/2]=2\/3x-2\/3 2x-1\/4x-1\/4=2\/3x-2\/3 7\/4x-1\/4=2\/3x-2\/3 7\/4x-2\/3x=1\/4-2\/3 13\/12x=-5\/12 x=(-5\/12)÷(13\/12)x=-5\/13 ...

2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)
2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)2x-1\/2x+1\/4x-1\/4=2\/3x-2\/3 乘12 24x-6x+3x-3=8x-8 24x-6x+3x-8x=-8+3 13x=-5 x=-5\/13

2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)要过程
2x-1\/2（x-1\/2x+1\/2）=2\/3x-2\/3 2x-1\/2x+1\/4x-1\/4=2\/3x-2\/3 2x-1\/2x+1\/4x-2\/3x=-2\/3+1\/4 24\/12x-6\/12x+3\/12x-8\/12x=-8\/12+3\/12 13\/12x=-5\/12 x=-5\/12÷13\/12 x=-5\/13

2x一1\/2[x一1\/2(x一1)]二2\/3(x一1)的解是
2x一1\/2[x一1\/2(x一1)]=2\/3(x一1)2x一1\/2[1\/2x+1\/2]=2\/3(x一1)2x一1\/4x一1\/4=2\/3x一2\/3 7\/4x-1\/4=2\/3x-2\/3 13\/12x=-5\/12 x=-5\/13

2x减去二分之一{X-二分之一(x-1)}=三分之二(x-1)
2x-1\/2[x-1\/2(x-1)]=2\/3(x-1)12x-3[x-1\/2x+1\/2]=4(x-1)12x-3x\/2-3\/2=4x-4 24x-3x-3=8x-8 24x-3x-8x=-8+3 13x=-5 x=-5\/13

解方程2x-1\/2[x-1\/2(x-1)]=1\/3(x-1)
2x-1\/2[x-1\/2(x-1)]=1\/3(x-1)则题目要求x不能为1 两边同时乘以6（x-1)化简得9（x-1\/2）^2=11\/4 3(x-1\/2)=+-√11\/2 x=1\/2+-√11\/6 根据我的步骤你自己来试试看，希望我的回答对你有帮助，谢谢！