解1/5x+2=1/3(4/5x-2)
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解1/5x+2=1/3(4/5x-2)
解1/5x+2=1/3(4/5x-2)
解1/5x+2=1/3(4/5x-2)
1/5x +2=1/3﹙4/5x -2﹚解∶1/5x+2=4/15x -2/3 3x +30=4x ﹣10 3x -4x =﹣10-30 x =40
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