5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
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5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
-a+10b-6c具体一点5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)] =5a+3b-[6c-2a-(a-c)]-9a+(7b+c) =5a+3b-6c+2a+(a-c)-9a+7b+c =5a+3b-6c+2a+a-c-9a+7b+c =(5+2+1-9)a+(3+7)b+(-6-1+1)c =-a+10b-6c 够详细了吧 亲 这是小学六年级的题...
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-a+10b-6c
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2a(a+b-c)-3b(a+b-c)+5c(c-a-b)
5a+{3b+[6c-2a-2(a-c)]}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
计算:5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
化简:7(a-b-c)-5(a+b-c)+3(a-b-c)+(a+b-2)
初二分式的加减法2a-b-c/(a-b)(a-c)+ 2b-c-a/(b-c)(b-a)+ 2c-b-a/(c-b)(c-a)3a-6b/a+b- 5a-6b/a-b- 4a-5b/a+b+ 7a-8b/b-a注:有空格的地方是下一个分式
已知:(a-b)(b-c)(c-a)/(a+b)(b+c)(c+a)=5/132,求a/(a+b)+b/(b+c)+c/(c+a)的值!(请尽快,我有急用,a/(a+b)+b/(b+c)+c/(c+a)=1/2[(a-b)/(a+b)+(b-c)/(b+c)+(c-a)/(c+a)]+3/2 (a-b)/(a+b)+(b-c)/(b+c)+(c-a)/(c+a) 没有错吧...
(a-b+c/a+b-c)-(a-2b+3c/b-c+a)+(b-2c/c-a-b)
(a-b)(b-c)(c-a)/(b-a)(a-c)2(c-b)3
(a+b-c)^5(a-b-c)^2(c-a-b)^4(c+b-a)^3 计算
分解因式:2a(a+b-c)-3b(a+b-c)+5c(c-a-b)
2a(a+b+c)-3b(a+b+c)+5c(c-a-b)分解因式
2a(a+b+c)-3b(a+b-c)+5c(c-a-b)分解因式
计算题5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
a+6b等于c,2a-2b等于5c,求a:b;c
3a-c=4a+2b-c=a+b+c a:b:c