-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦

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-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦-(-5x+y

-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦
-(-5x+y)-3(2x-3y)去括号再合并同类项求解
如题啦

-(-5x+y)-3(2x-3y)去括号再合并同类项求解如题啦
-(-5x+y)-3(2x-3y)
=5x-y-6x+9y
= - x+8y