初一数学书第122页知识技能1.有的话重赏!师范版,去括号:-(2m-3) n-3(4-2m) 16a-8(3b+4c) t+3分之2(12-9v)-(5m+n)-7(a-3b)-2分之1(x+y)+4分之1(p+q)-8(3a-2ab+4)4(m+p)-7(n-2q)化简(包括去括号,合并同类项)-2n-(3
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![初一数学书第122页知识技能1.有的话重赏!师范版,去括号:-(2m-3) n-3(4-2m) 16a-8(3b+4c) t+3分之2(12-9v)-(5m+n)-7(a-3b)-2分之1(x+y)+4分之1(p+q)-8(3a-2ab+4)4(m+p)-7(n-2q)化简(包括去括号,合并同类项)-2n-(3](/uploads/image/z/5629094-62-4.jpg?t=%E5%88%9D%E4%B8%80%E6%95%B0%E5%AD%A6%E4%B9%A6%E7%AC%AC122%E9%A1%B5%E7%9F%A5%E8%AF%86%E6%8A%80%E8%83%BD1.%E6%9C%89%E7%9A%84%E8%AF%9D%E9%87%8D%E8%B5%8F%21%E5%B8%88%E8%8C%83%E7%89%88%EF%BC%8C%E5%8E%BB%E6%8B%AC%E5%8F%B7%EF%BC%9A-%EF%BC%882m-3%EF%BC%89+n-3%284-2m%29+16a-8%283b%2B4c%29+t%2B3%E5%88%86%E4%B9%8B2%2812-9v%29-%285m%2Bn%29-7%28a-3b%29-2%E5%88%86%E4%B9%8B1%28x%2By%29%2B4%E5%88%86%E4%B9%8B1%28p%2Bq%29-8%283a-2ab%2B4%294%28m%2Bp%29-7%28n-2q%29%E5%8C%96%E7%AE%80%EF%BC%88%E5%8C%85%E6%8B%AC%E5%8E%BB%E6%8B%AC%E5%8F%B7%EF%BC%8C%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9%EF%BC%89-2n-%283)
初一数学书第122页知识技能1.有的话重赏!师范版,去括号:-(2m-3) n-3(4-2m) 16a-8(3b+4c) t+3分之2(12-9v)-(5m+n)-7(a-3b)-2分之1(x+y)+4分之1(p+q)-8(3a-2ab+4)4(m+p)-7(n-2q)化简(包括去括号,合并同类项)-2n-(3
初一数学书第122页知识技能1.有的话重赏!
师范版,
去括号:
-(2m-3)
n-3(4-2m)
16a-8(3b+4c)
t+3分之2(12-9v)
-(5m+n)-7(a-3b)
-2分之1(x+y)+4分之1(p+q)
-8(3a-2ab+4)
4(m+p)-7(n-2q)
化简(包括去括号,合并同类项)
-2n-(3n-1)
a-(5a-3b)+(2b-a)
-3(2s-5)+6s
1-(2a-1)-(3a-3)
3(-ab+2a)-(3a-b)
14(abc-2a)+3(6a-2abc)
3(xy-2z)+(-xy+3z)
-4(pq+pr)+(4pq+pr)
初一数学书第122页知识技能1.有的话重赏!师范版,去括号:-(2m-3) n-3(4-2m) 16a-8(3b+4c) t+3分之2(12-9v)-(5m+n)-7(a-3b)-2分之1(x+y)+4分之1(p+q)-8(3a-2ab+4)4(m+p)-7(n-2q)化简(包括去括号,合并同类项)-2n-(3
去括号:
-(2m-3) =-2m+3
n-3(4-2m) =n-12+6m
16a-8(3b+4c) =16a-24b-32c
t+3分之2(12-9v)=t+8-6v
-(5m+n)-7(a-3b)=-5m-n-7a+21b
-(x+y)+4分之1(p+q)=-2分之1x-二分之一y+p+四分之一q
-8(3a-2ab+4)=-24a+16ab-32
4(m+p)-7(n-2q)=4m+4p-7n+14q
化简(包括去括号,合并同类项)
-2n-(3n-1)=-2n-3n+1=-5n+1
a-(5a-3b)+(2b-a)=a-5a+3b+2b-a=-5a+5b
-3(2s-5)+6s=-6s+15+6s=15
1-(2a-1)-(3a-3)=1-2a+1-3a+3=-5a+3
3(-ab+2a)-(3a-b)=-3ab+6a-3a+b=-3ab+3a+b
14(abc-2a)+3(6a-2abc)=14abc-28a+18a-6abc=8abc-10a
3(xy-2z)+(-xy+3z)=3xy-6z-xy+3z=2xy-3z
-4(pq+pr)+(4pq+pr)=-4pq-4pr+4pq+pr=-3pr
tttttttttttttttttttttttttttttt
-(2m-3) =-2m+3
n-3(4-2m) =n-12+6m
16a-8(3b+4c) =16a-24b-32c
t+3分之2(12-9v)=t+8-6v
-(5m+n)-7(a-3b)=-5m-n-7a+21b
-8(3a-2ab+4)=-24a+16ab-32
4(m+p)-7(n-2q)=4m+4p-7n+14q
化简(包...
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-(2m-3) =-2m+3
n-3(4-2m) =n-12+6m
16a-8(3b+4c) =16a-24b-32c
t+3分之2(12-9v)=t+8-6v
-(5m+n)-7(a-3b)=-5m-n-7a+21b
-8(3a-2ab+4)=-24a+16ab-32
4(m+p)-7(n-2q)=4m+4p-7n+14q
化简(包括去括号,合并同类项)
-2n-(3n-1)=-2n-3n+1=-5n+1
a-(5a-3b)+(2b-a)
=a-5a+3b+2b-a
=-5a+5b
-3(2s-5)+6s
=-6s+15+6s
=15
1-(2a-1)-(3a-3)
=1-2a+1-3a+3
=-5a+3
3(-ab+2a)-(3a-b)
=-3ab+6a-3a+b
=-3ab+3a+b
14(abc-2a)+3(6a-2abc)
=14abc-28a+18a-6abc
=8abc-10a
3(xy-2z)+(-xy+3z)
=3xy-6z-xy+3z
=2xy-3z
-4(pq+pr)+(4pq+pr)
=-4pq-4pr+4pq+pr
=-3pr
望采纳~
收起
够多的啊!我好像还没学到那里。