1.4x+3=3x+5 2.12-4x=3x-21.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 14:04:29
1.4x+3=3x+52.12-4x=3x-21.4x+3=3x+52.12-4x=3x-23.3(2x-1)=4(3-x)4.12-2(3x-4)=x5.13-2(2x-3)=5-(x-2)1.4x

1.4x+3=3x+5 2.12-4x=3x-21.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)
1.4x+3=3x+5 2.12-4x=3x-2
1.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)

1.4x+3=3x+5 2.12-4x=3x-21.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)
        4x+3=3x+5   
4x-3x=5-3
x=2              
 2.       12-4x=3x-2
-4x-3x=-2-12
-7x=-14
x=2
3.        3(2x-1)=4(3-x)        
6x-3=12-4x
6x+4x=12+3
10x=15
x=1.5
 4.     12-2(3x-4)=x
12-6x+8=x
-6x-x=-12-8
-7x=-20
x=20/7
5.        13-2(2x-3)=5-(x-2)
13-4x+6=5-x+2
-4x+x=5+2-13-6
-3x=-12
x=4

  1. X=2

  2. X=2

  3. X=1.5

  4. X=20/7

  5. X=4