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m-2(3-2n)去括号合并同类项,还有3题.x-3(4-2m)(8a-7b)-(4a-5b)-(5x+y)-3(2x-3y)

题目详情
m-2(3-2n) 去括号合并同类项,还有3题.
x-3(4-2m)
(8a-7b)-(4a-5b)
-(5x+y)-3(2x-3y)
▼优质解答
答案和解析
m-2(3-2n)
=m-6+4n
x-3(4-2m)
=x-12+6m
(8a-7b)-(4a-5b)
=8a-7b-4a+5b
=4a-2b
-(5x+y)-3(2x-3y)
=-5x-y-6x+9y
=-11x+8y