去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 04:54:55
![去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)](/uploads/image/z/1789789-13-9.jpg?t=%E5%8E%BB%E6%8B%AC%E5%8F%B7%2C%E5%B9%B6%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9%EF%BC%9A%3A%EF%BC%881%EF%BC%892n-%282-n%29%2B%286n-2%29+%282%29a%2B3%285a-2b%29-2%283a-b%29)
去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
2n-(2-n)+(6n-2)
=2n-2+n+6n-2
=9n-4
(2)a+3(5a-2b)-2(3a-b)
=a+15a-6b-6a+2b
= 10a-4b
(1)=2n-2+n+6n-2 (2) =a+15a-6b-6a+2b
=9n-4 =10a-4b
(a+1)-2(-b+a)去括号并合并同类项
去括号,并合并同类项(3x-1)+(2-5x)=
去括号,并合并同类项::(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
去括号,并合并同类项:(1)2n-(2-n)+(6n-2) (2)a+3(5a-2b)-2(3a-b)
(2xy-y)-(-y+xy)去括号并合并同类项
去括号并合并同类项
去括号并合并同类项
去括号,并合并同类项,
去括号并合并同类项
去括号,并合并同类项2a的平方-1/2(ab+a的平方)-8ab去括号,合并同类项
去括号,并合并同类项 3x+1-2(4-x)
去括号后合并同类项2次方
2+m-(-m-2)= (去括号,合并同类项)
去括号合并同类项.(a+1)-2(-b+a)
(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项
去括号并合并同类项 m-2(3-2n) (8a-7b)-2(4a-5b) -(5x+y)-3(2x-3y)
问几道关于初一数学去括号合并同类项的习题~必须复制下原题,有才的大虾帮帮我吖1:去括号、并合并同类项:(1)a+(-b+c-d)(2)a-(-b=c-d)(3)-(p+q)+(m-n)(4)(r+s)-(p-q)(5)3(2xy-y
2(7m-3n)-(8m-5n)去括号再合并同类项,