几道计算题,(初一的知识解,去括号的)计算((1)8x-(5x-4)(2)(3x-2y)-(-x-y)(3)2(x-3)-3(2x-5)(4)5(-m+n)-7(m-n)(5)-3(a+b+c)-4(-a-5b+6c)
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![几道计算题,(初一的知识解,去括号的)计算((1)8x-(5x-4)(2)(3x-2y)-(-x-y)(3)2(x-3)-3(2x-5)(4)5(-m+n)-7(m-n)(5)-3(a+b+c)-4(-a-5b+6c)](/uploads/image/z/5466798-54-8.jpg?t=%E5%87%A0%E9%81%93%E8%AE%A1%E7%AE%97%E9%A2%98%2C%EF%BC%88%E5%88%9D%E4%B8%80%E7%9A%84%E7%9F%A5%E8%AF%86%E8%A7%A3%2C%E5%8E%BB%E6%8B%AC%E5%8F%B7%E7%9A%84%EF%BC%89%E8%AE%A1%E7%AE%97%EF%BC%88%EF%BC%881%EF%BC%898x%EF%BC%8D%EF%BC%885x%EF%BC%8D4%29%EF%BC%882%EF%BC%89%EF%BC%883x%EF%BC%8D2y%29%EF%BC%8D%EF%BC%88%EF%BC%8Dx%EF%BC%8Dy%29%EF%BC%883%EF%BC%892%EF%BC%88x%EF%BC%8D3%EF%BC%89%EF%BC%8D3%EF%BC%882x%EF%BC%8D5%EF%BC%89%EF%BC%884%EF%BC%895%EF%BC%88%EF%BC%8Dm%EF%BC%8Bn%29%EF%BC%8D7%EF%BC%88m%EF%BC%8Dn%29%285%EF%BC%89%EF%BC%8D3%EF%BC%88a%EF%BC%8Bb%EF%BC%8Bc%29%EF%BC%8D4%EF%BC%88%EF%BC%8Da%EF%BC%8D5b%EF%BC%8B6c%29)
几道计算题,(初一的知识解,去括号的)计算((1)8x-(5x-4)(2)(3x-2y)-(-x-y)(3)2(x-3)-3(2x-5)(4)5(-m+n)-7(m-n)(5)-3(a+b+c)-4(-a-5b+6c)
几道计算题,(初一的知识解,去括号的)
计算((1)8x-(5x-4)
(2)(3x-2y)-(-x-y)
(3)2(x-3)-3(2x-5)
(4)5(-m+n)-7(m-n)
(5)-3(a+b+c)-4(-a-5b+6c)
几道计算题,(初一的知识解,去括号的)计算((1)8x-(5x-4)(2)(3x-2y)-(-x-y)(3)2(x-3)-3(2x-5)(4)5(-m+n)-7(m-n)(5)-3(a+b+c)-4(-a-5b+6c)
(1)8x-(5x-4)
=8x-5x+4
=3x+4
(2)(3x-2y)-(-x-y)
=3x-2y+x+y
=4x-y
(3)2(x-3)-3(2x-5)
=2x-6-6x+15
=-4x+9
(4)5(-m+n)-7(m-n)
=-5m+5n-7m+7n
=12n-12m
(5)-3(a+b+c)-4(-a-5b+6c)
=-3a-3b-3c+4a+20b-24c
=a+17b-27c
如果本题有什么不明白可以追问,如果满意请点击“选为满意答案”
(1)8x-(5x-4)
=8x-5x+4
=3x+4
(2)(3x-2y)-(-x-y)
=3x-2y+x+y
=4x-y
(3)2(x-3)-3(2x-5)
=2x-6-6x+15
=-4x+9
(4)5(-m+n)-7(m-n)
=-5m+5n-7m+7n
=12n-12m
(5)-3(a+b...
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(1)8x-(5x-4)
=8x-5x+4
=3x+4
(2)(3x-2y)-(-x-y)
=3x-2y+x+y
=4x-y
(3)2(x-3)-3(2x-5)
=2x-6-6x+15
=-4x+9
(4)5(-m+n)-7(m-n)
=-5m+5n-7m+7n
=12n-12m
(5)-3(a+b+c)-4(-a-5b+6c)
=-3a-3b-3c+4a+20b-24c
=a+17b-27c
不懂可以追问哦,望采纳,祝学习进步O(∩_∩)O
收起
1.3x+4
2.4x-y
3.-4x+9
4.-12m+12n
5.a+17b-27C
望采纳
(1)8x-(5x-4)
=8x-5x+4
=3x+4
(2)(3x-2y)-(-x-y)
=3x-2y+x+y
=4x-y
(3)2(x-3)-3(2x-5)
=2x-6-6x+15
=9-4x
(4)5(-m+n)-7(m-n...
全部展开
(1)8x-(5x-4)
=8x-5x+4
=3x+4
(2)(3x-2y)-(-x-y)
=3x-2y+x+y
=4x-y
(3)2(x-3)-3(2x-5)
=2x-6-6x+15
=9-4x
(4)5(-m+n)-7(m-n)
=5n-5m-7m+7n
=12n-12m
(5)-3(a+b+c)-4(-a-5b+6c)
=-3a-3b-3c+4a+20b-24c
=a+17b-27c
祝你学习进步!!!
收起
=8X-5X+4=3X+4 =3X-2Y+X+Y=4X-Y =2X-6-6X+15=9-4x =-5m+5n-7m+7n=-12m+12n =-3a-3b-3c+4a+20b-24c=a+17b-27c