1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题还有三道先去括号,再合并同类型的题(-2ab+3a)-(2a-b)+6ab(x+y-z)+(x-y+z)-2(x-y+2z)2x-[x-2(x-b)+b]
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![1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题还有三道先去括号,再合并同类型的题(-2ab+3a)-(2a-b)+6ab(x+y-z)+(x-y+z)-2(x-y+2z)2x-[x-2(x-b)+b]](/uploads/image/z/1268233-25-3.jpg?t=1%2F3x-%282x-2%2F3y%26%23178%3B%29%2B%28-2%2F3x%2B1%2F3y%26%23178%3B%29+%E5%8C%96%E7%AE%80%E9%A2%98%E8%BF%98%E6%9C%89%E4%B8%89%E9%81%93%E5%85%88%E5%8E%BB%E6%8B%AC%E5%8F%B7%EF%BC%8C%E5%86%8D%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E5%9E%8B%E7%9A%84%E9%A2%98%EF%BC%88-2ab%2B3a%EF%BC%89-%282a-b%29%2B6ab%28x%2By-z%29%2B%28x-y%2Bz%29-2%28x-y%2B2z%292x-%5Bx-2%28x-b%29%2Bb%5D)
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1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题还有三道先去括号,再合并同类型的题(-2ab+3a)-(2a-b)+6ab(x+y-z)+(x-y+z)-2(x-y+2z)2x-[x-2(x-b)+b]
1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题
还有三道先去括号,再合并同类型的题
(-2ab+3a)-(2a-b)+6ab
(x+y-z)+(x-y+z)-2(x-y+2z)
2x-[x-2(x-b)+b]
1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题还有三道先去括号,再合并同类型的题(-2ab+3a)-(2a-b)+6ab(x+y-z)+(x-y+z)-2(x-y+2z)2x-[x-2(x-b)+b]
1/3x-(2x-2/3y²)+(-2/3x+1/3y²) 化简题
=x/3-2x+2y²/3-2x/3+y²/3
=-7x/3+y²;
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