x-(3x+y)+(x-5y)去括号,合并同类项
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x-(3x+y)+(x-5y)去括号,合并同类项x-(3x+y)+(x-5y)去括号,合并同类项x-(3x+y)+(x-5y)去括号,合并同类项x-(3x+y)+(x-5y)=x-3x-y+x-5y=
x-(3x+y)+(x-5y)去括号,合并同类项
x-(3x+y)+(x-5y)去括号,合并同类项
x-(3x+y)+(x-5y)去括号,合并同类项
x-(3x+y)+(x-5y)=x-3x-y+x-5y=-x-6y
=x-3x-y+x-5y
=-x-6y
-x-6y
=x-3x-y+x-5y
=-x-6y
X-(3X+Y)+(X-5y)
=X-3X-Y+X-5Y
=-X-6Y
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