解方程。 (1)2(x+1)=6; (2)4(x-1)=1-x; (3)3-(1+2x)=2x; (4)3(2x-1)-2(1-x)=0.

2024-12-17 20:33:05
推荐回答(5个)
回答1:

1)2(x+1)=6
x+1=3················两边同时除以闹此2
X=2···················两边同时减去液圆迅1
(2)4(x-1)=1-x
4X-4=1-X············左边运算
5X=5 ················移项
X=1
(3)腔氏3-(1+2x)=2x
2-2X=2X```````````````左边运算
4X=2```````````````````移项
X=0.5``````````````````两边同时除以4
(4)3(2x-1)-2(1-x)=0
6X-3-2+2X=0``````````````````左边运算
8X-5=0··························合并同类项
8X=5 ``````````````````````````移项
X=5/8

回答2:

(1)2(x+1)=6 , x+1=3 ,x=2
(2)4(x-1)=1-x,4(x-1)=-(x-1 ) 无解;
(3)启顷3-(1+2x)=2x,3-1-2x=2x,2-4x=0,氏举4x=2,x=0.5;
(4)3(2x-1)-2(1-x)悄核陆=0
6x-3-(2-2x)=0
6x-3-2+2x=0
8 x-5=0
8 x=5
x=5/8

回答3:

(1)解:2x+2=6 2x=4 x=2 (2)解圆和:4x-4=1-x 5x-4=1 5x=5 x=1 (3)解毕芹:2+2x=2 2x=0 x=0
(4)解:手腔毕3× 2x-3-2-2x=0 6x-2x-3-2=0 4x-5=0 4x=5 x=1.25

回答4:

都是一元一次方程哦,太容易,不想回答啦。

回答5:

1、x+1=3 x=2 2、4x-4=1-x 5x=5 x=1 3、3-1-2x=2x -4x=-2 x=1/颂启链源2 4、野唤如6x-3-2+2x=0 8x-5=0 x=5/8