试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____.

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试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____.
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试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____.
试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__
试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____.

试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____.
(1)a+b+c-d (2)a+b-c+d (3)a-3b+3c-3d (4)a+3b-3c+3d

a+b+c-d
a+b-c+d
a-3b+3c-3d
a+3b-3c+3d

试一试,去括号.(1)(a+b)+(c-d)=______;(2)(a+b)-(c-d)=______;(3)a+3(-b+c-d)=________;(4)a-3(-b+c-d)=__试一试,去括号.(1)(a+b)+(c-d)=_____;(2)(a+b)-(c-d)=_____;(3)a+3(-b+c-d)=_____;(4)a-3(-b+c-d)=_____. 去括号-(a-b+c) (a-b)-(-c+d)怎么去括号,去括号法则 去括号（a+1）-（-b+c）=（ ） a-(-b-c)去括号等于多少 a-(-b+c-d)如何去括号 -[a-(b-c)]去括号应为?- - a+(-b+c-d)去括号, -(a+b)+(c-d)怎么去括号 (a-c)+(-b-d)去括号! 去括号 -[a-(b-c)]等于? (a+b)-(-c+d)如何去括号 (b-c)÷a去括号 a÷(b-c)去括号 a÷(b+c)怎么去括号 -[a-(b+c)] 去括号应为 化简a^(b^c),去括号 A∩(B∪C)去括号